The Owl House-verse Strategy Guide

 

How to be OP in the Owl House-verse

Since The Owl House is a newer show I would likely to quick give a spoiler warning. 

Town Tier:

This is the main tier for most of the characters in the series. The series takes place in the Demon Realm, set primarily on the boiling isles, an set of islands that are actually the corpse of an ancient giant being known as a titan. Everything in the demon realm is far more dangerous with normal school events including encounters with lethal monsters and the very weather including things like boiling rains, gorenados, and painbows. As such the beings from that realm are naturally much stronger. 

The characters in this tier broadly range between the kiloton range (town level) and the megaton range (city level) depending on if you use the lower or higher end for their calcs. Near the start of season 2 Luz the protagonist demonstrates the capability to create a massive ice wall, calced at about 3.77 kilotons consistent with End of Season 1 Luz vaporizing one of Belos worm beasts calced at hundreds of tons of tnt. This Luz is still considered relatively new to magic compared to the other students of Hexside. These students in Season 3 would fight and at least somewhat pressure Kikkimora's Abomination Mech that seemed to vaporize a section of the ground with one blast. If it is indeed vaporization this would take over 30 kilotons and the mech tanked the recoil of the blast. King, with his sonic attack was able to do some damage to the finger of the titan, a feat that would require at least 3 kilotons of force based just on the visual damage. Some think it may be much higher judging based on the force of how much a titan's finger flick would have to be and the titan's finger clearing away the local clouds with energy in the range of tens to hundreds of megatons though whether this scales to the dead titan's finger is unclear. Hunter's Palisman Flapjack easily blocks one of King's shouts prior to this. When Luz awakens her own Palisman Stringbean just the energy released has been calced as being between 2 and 260 kilotons, and her accidental blast with Stringbean being calced at 33.7 kilotons for pulverization and 4 megatons for vaporization. Finally the series has a relic called the Green Thumb Gauntlet that can create any tree one can imagine, the energy needed to simple create a tree actually being quite substantial. Using just trees in the real world, this would come out to over 95 kilotons of energy, though the Boiling Isles from some shots comparing trees to the Titan's head might have even larger trees than exist in the human realm, and would reach a level of 11.13 megatons. Lilith called relics including the gauntlet which she easily overpowered "decrepit relics" yet famously even a dying Eda was still stronger than Lilith proclaiming that "even at your best, you can't defeat me at my worst!" So it's very safe to say the characters are somewhat in the kiloton to megaton range depending on who exactly, though the gap between many of them isn't massive with Season 1 Luz actually doing slight damage to Emperor Belos by hitting him in the eye, Belos being hyped as the strongest character in the tier. The lowballed interpretation is Lower Tiers are single-digit kilotons scaling off Luz simply awakening her palisman, creating a large ice wall, and downscaling from Kikkimora's mecha, Mid Tiers are double-digit kilotons scaling directly to Kikkimora's mech, Stringbean's accidental magic blast, and downscaling from Lilith overpowering the Green Thumb Gauntlet, and High Tier beings triple-digit kilotons upscaling from Lilith overpowering the Green Thumb Gauntlet. The Highballed interpretation is that even Low Tiers are triple-digit kilotons scaling off Luz awakening her power being 260 kilotons, Mid Tiers scale to Palismans being able to take King's sonic attack and Stringbean's own attack value as well as scaling to around the Green Thumb Gauntlet, putting them at double-digit megatons, and High Tiers scaling far above, likely to triple-digit megatons from a heavily weak Eda scaling above Lilith scaling far above double-digit megaton feats. There are actually arguments of the characters being even strong based mostly on scaling to casual attacks from Titan Belos, but I'm generally skeptical of this scaling. 

In terms of speed, characters flight/reaction speed is a bit above their normal movement speed. Their normal movement speed mostly scales around light-timing, generally from Light Glyphs. Piniet, a normal Boiling Isles inhabitant moves at a notable fraction of the light from a Light Glyph on screen, just over a quarter of its speed. In Luz's fight with Harpy Eda, Eda outpaces from the light glyph, calced at nearly 4 times the speed of light, a fight with End of Season 2 Luz keeps pace with her. The gap between the two feats is roughly 13.5x, which gives us the range of speeds for Boiling Isle inhabitants. Lilith also has a feat of moving just slightly above that of the light from a Light Glyph, giving another reference point for where characters would be. Broadly Lower to Mid Tier characters would be Relativistic while High Tier characters would be lower end FTL. However, their flight/reaction speed is a bit higher. After absorbing the power of the Palisman Flapjack, Hunter becomes a speedster, able to appear as just a blur to the other characters. These Palismans seem to fly relative to The Collector and to Titan Belos who was able to tag the Collector. In fairness, the Collector was playing around the entire time with Luz and friends, and Titan Belos tagged the Collector with the help of very large area of efects. That said the Collector is a child from a cosmic alien race known as the Archivists, a group that travels between star systems and whose speed will be explained more later in this blog. If the Palismans' speed is even a fraction of this, the characters flight/reaction speed would likely be hundreds of times the speed of light at least. 

The primary denizens of the Boiling Isles are Witches and Demons. Witches are a humanoid race with pointed ears and a bile sac attached to their heart that allow them to cast spells. Demons are creatures that come in three designates (Beast, Bug, and Bipedal.) They often rely on biological abilities but also have bile sacs and can learn magic. Magic is cast by drawing a circle with any of their limbs in the air or in a material like the ground. While at the end of the series, any one with a bile sac can hypothetically cast any spell as the coven system was disbanded, presumably mages would still use the type of magic that they are most knowledgeable in. The power of a mage's magic increases with both their knowledge and their emotional state. The types of magic that were present during the coven system included:

• Abomination Magic: Most notably used by Amity, her father Alador, and the Coven Head Darius. Abomination Magic manipulates a viscous purple slime into constructs, weapons, or most commonly monsters known as abominations. The strongest abominations are Alador's technology-amplified abominations called Abominations 2.0
• Bardic Magic: Most notably used by Coven Head Raine.and the rebellion group Bards against the Throne (BATT.) Bardic Magic manipulates sound and frequency. This can be used to directly attack with soundwaves or create small localized storms. It can be used to brainwash people or put them to sleep and can be used subtly to change the properties of liquids.
• Beast-Keeping Magic: Most notably used by Coven Head Eberwolf as well as Gwendolyn Clawthorne and Edric Blight. Beast-Keeping magic is used to speak to and control the various strange animal species on the Boiling Isles as well as seemingly to gain some of their traits
• Construction Magic: Most notably used by Coven Head Mason, Construction Magic involves manipulating stone structures to build stuff and can be used to amplify one's physical characteristics. It MAY be related to the magic used to make parts of one's body grow but it's not clear. 
• Healing Magic: Most notably used by Head Master Hettie and to a lesser extent by Viney, Healing Magic is used to heal wounds and poisons. It also is stated by the wiki though I don't know where this is from that it is related to shield spells. Various forms of shields and bindings are seen in the series including barriers that are erected to every exit of Hexside, or Eda creating a shield around the entire Owl House as well as Belos using bindings strong enough that Owlbeast Eda couldn't break them and Amity creating an energy cage around Luz. 
• Illusion Magic: Most notably used by Coven Head Adrian, Gus, Emira Blight and also used by the demon Adegast, Illusion Magic is magic that creates illusions including illusory clones or entire illusory surroundings. Gus and Adegast have shown the ability to create illusions extending to the horizon, Gus' illusions have shown the ability to affect sensations other then sight and sound and Adegast's were targeted to appeal to the victim's desires. Illusion Magic seems to have some connection to memory, often recreating things from the caster or target's memories and Adrian also seemingly demonstrated the ability to read memories as a connected ability and may be the type of magic of the amnesia spell Luz tried in Eda's body. 
• Oracle Magic: Most notably used by Coven Head Osran as well as Odalia Blight, Oracle Magic is primarily used to divine information through the usage of Precognition, Clairvoyance, and Telepathy. It can also be used to invoke spirits and their powers, summoning spirits or psychic energy that can be shaped into constructs. 
• Plant Magic: Most notably used by Coven Head Terra as well as Willow, Plant Magic is the manipulation of flora, accelerating their growth and directing them for usage of various poisons or to bind enemies. 
• Potions Magic: Most notably used by Coven Head Vitimir as well as the demon Tibbles. Potions Magic is the magic of creation potions of various effects. These can be used as acids or explosives, causing sleep or counteracting curses, and even esoteric effects like bringing objects to life or shrinking people.

There are various other spells that seem to be commonly used. Telekinesis and Levitation are extremely common and used by random mages. Elemental Magic also seems to fairly common with light magic, fire magic, ice magic, and water magic all being seen used in normal circumstances. Something known as a Death Hex was sent to Eda in the mail which caused a trash can to disintegrate and presumably would have done the same to Eda. Magic Users can enter an Everlasting Oath which is a type of magic that forces them to abide by the conditions they set unless it is released. It's broadly implied that magic in the verse can affect ghosts with Eda as a child letting loose a bunch of ghosts in the girls' locker room. Likewise mages as a matter of course get a palisman which gives them flight, energy projection, and enhances their speed. Witches also sometimes have garments made of witch's wool, a special material that protects from magic. 

Some of the most important mages are one who were never affiliated with one of types of magic. Hunter was once the Golden Guard, the latest in Emperor Belos' line of prodigy mages who after absorbing the power of a Palisman can enhance his own speed as well as teleport. Kikimora is a coven head who rides around on a dragon monster and uses fire projection. Lilith was another coven head who not only could use all the types of magic but cast a curse on her sister that slowly drained her magic and caused her to sporadically turn into an owl-monster, with no one being able to cure it. She also demonstrated another spell that may be related is the "Share the Pain" spell, a spell that can used to evenly split injuries and pains between people, including other curses like the owl curse, possibly a Healing Coven spell.  Because of the owl curse on her, she's also immortal and universally animate able to tank having her head removed.

However the most important is the main character Luz is a human and so had no bile sac but unlocked the ancient art of gylph magic. The four Basic Glyphs, drawn pictures with circles that appear everywhere in nature and cause magic, are the letters in the Titan Alphabet of Fire, Ice, Light, and Plant. From these and combining these glyphs can create a wide swath of effects including all the coven types of magic as well as numerous other kinds of magic: petrification, windstorms, invisibility, summoning giant monster arms, and more. Luz also has the toonforce ability to induce montages and is a skilled at diplomacy to the point that Amity considers it one of her notable traits. 

However the two strongest witches in the series are the two witches who both have a claim to being the strongest witch in the world: Prime Eda and Emperor Belos. While Eda's magic weakens over the course of the series, Eda early on is considered an uncatchable outcast from Emperor Belos' society, a wild magic user without equal who defeated the Emperor's arguably strongest witch while she was at her weakest. Eda shows a ton of magical abilities no one else in the series does including body-swapping, lasers, can fuse objects together, can summon a dark-multi-headed counterpart of Hooty, can draw a single circle that itself draws many circles to cast many spells at once, magical fire traps, lightning manipulation, and sending people inside others minds. Due to her owl curse nature, Eda is also immortal and universally animate. 

On the other hand, Emperor Belos is the ruler of the Boiling Isles, a human witch-hunter who disguised his true nature and learned to cast the same glyph magic Luz did and developed a form of artificial magic using a special staff that ignores the usual magically resist witch's wool. Belos can create portals and teleport, drain the magic from Palismans, petrify people, telepathically sense and communicate, telekinesis, summoning and was able to restore Eda's consciousness inside the owl creature. Later on his body developed into a sludge-material that he can shift into weapons, shapeshift, regenerate, and possess people. 

The Boiling Isles also has numerous other demons that use their physical capabilities, the strongest of these such as Slitherbeasts, The Bat Queen, and Hooty being strong enough that they don't need magic. The Bat Queen uses webs to bind enemies and Hooty is a long disturbingly flexibly creature with enhanced hearing that easily beat away any attempts people had to attack Eda's home including the strongest mages of Belos at once. There's also basilisks like Vee. Basilisks are shapeshifting creatures that can drain magic from witches and demons nearby, making them highly feared. 

Outside the Witches and Demons there are a few other things of note in the Demon Realm. There is a creature named Grometheus whose nature is never explained who turns into the deepest fear of whoever sees it. There still exists at least one golem, which are the ancient guardians of the titans young. Speaking of, perhaps the most important being in the Boiling Isles is King. King is a child titan, the last living one. Despite his small stature, King is capable of emitting a sonic "WAAAA" attack that is a relevant threat to any of the cast, and hypothetically is full of titan's blood. Titan's blood, even a few drops, is the most powerful power source in the Owl House, capable of fueling especially powerful spells and breaking through the boundary between realms to the human realm. There's also... giraffes *shivers*

So in terms of threats this verse is very versatile including many biological forms of attacks, many mental forms of attacks, many forms of information gathering, several forms of mobility enhancement, high stats for their stat tiers, and numerous form of anti-magical warfare. 

So how to fight this tier?

The first thing that came to mind was to use antimagic of your own. The antimagical properties of the Basilisk is what makes them so dreaded. Most of the powers in the tier are magical, and witches lifeforce seems to be magic. This isn't inherently an autowin button though. Belos magic can seem to ignore normal magical defenses. Also in the human realm glyph magic wasn't supposed to work yet just being near a vial of titan's blood made it work again, suggesting that being near King might help nearby Witches still use their magic even around antimagic sources. Not that it's a bad tactic by any means, just not invincible. Second all magic in the verse outside Belos' artificial magic seems to require making circles. Disrupting witches from drawing the circles such as powerful earth manipulation to knock them off their feet or powerful wind manipulation to knock them back can disrupt their magic. Particularly powerful telekinesis like Belos' also seems to be treated like a very strong power used to disarm people or keep them from drawing circles. Generally shutting off their magic through antimagic or through disrupting circles would be pretty potent against any magic wielding character here. 

Third, the characters' defenses are not actually that high. Defense in this verse is mostly limited to avoiding being hit, barrier type magic, antimagic, and Eda/Lilith's immortality. Any kind of non-magical form of offense that works based on sight or hearing or thought would likely take most characters in the tier by surprise. Biological manipulation would also be especially potent as Witches and Demons rely on bile sac to cast magic and the only one who would resist is the golem. Finally the characters secondary stats only really seem to be middle of the road at best. For a cartoon there's no obvious feats of superhuman skill or stamina and superhuman intelligence is arguable and limited in who it applies too. Plus the characters' range is only fine, characters with dimensional abilities are limited basically only to Titans and it would be extremely hard for characters to fight others with Dimensional Abilities. Characters with especially high ones of these would easily have their own niche. 

So who would be a good counter? My first suggestion would be...

Lord Zagato from Magic Knight Rayearth (Anime version)

Zagato was strong enough to effect Guru Clef with his magic who created a magical explosion calced at 1.7 Megatons. Assuming Zagato needs to be at least near him to use the power, this would make him a High Tier in Power compared to Lowballed TOH and Mid Tier in Power compared to Higher estimated TOH. While his movement speed would be negligible here, he is able to match the Magic Knights in sword combat, the Magic Knights having fast enough reactions to tag monsters made of light and pilot Rune Gods that equal the speed of interplanetary spaceships. This means he he should be able to react the the characters in this tier at least.

Mages in CLAMP like Zagato can naturally resist magic that isn't as strong as theirs, meaning Zagato should have a general resistance to most magic in the verse with the only exceptions maybe being the strongest witches maybe. Against these Zagato can rely on his other tools.

Zagato is able to match all 3 Magic Knights in melee combat, with Hikaru and Umi being able to match and best the most skilled swordsman/swordswoman in all of Cephiro and Chizeta respectively. He is also a cunning manipulator and intelligent enough to rise to the position of High Priest of Cephiro. This gives him a broad mental stat advantage against anyone in the tier, especially given his willpower is so strong that he was able to form his own Rune God from it, meaning that the manipulation of someone like Belos or Luz most likely wouldn't sway him even the slightest bit.

Zagato is a powerful mage as well as warrior and has numerous forms of one-shot hax that have been seen to be highly effective against even high tiers in TOH including petrification, matter manipulation, and mind control, all of which he did more thoroughly and/or quicker than the equivalent spells in TOH. This might not work against something like a Basilisk but he should be a strong enough physical warrior to fight them in melee. 

Even imagining the worst case scenarios for him, Prime Eda or Emperor Belos' with Witch's wool, or he's attacked by raw numbers, not only is his power, magic resistance, and skill likely enough to somewhat keep up but likely he has the power to open a Road, a pathway between dimensions, as seen by his desire to bring Esmeraude to another dimension and having willpower to rival the Magic Knights who can do the same. Dimensional Travel would allow him to escape any fight he needs to and if someone was to try and follow him through dimensions he could simply trap them there.

Still those scenarios especially being attacked by large numbers at once would be dangerous. Another counter you could use might be...

 

Lord Tirek from My Little Pony: Friendship is Magic

Tirek in his base form scales significantly above Spike the Dragon melting a large ice block with his fire breath calced at 920 tons of tnt. He should also scale to normal Unicorns sending magic blasts that hit the Moon very quickly calced at about 3.56c, just slightly under Eda's speed feat. This means Tirek in his base form would be on the lower end of power for the tier but on the higher end for speed, fitting his centaur-like appearance. Of course he wouldn't be in his base form for long. 

Tirek depending on form has various forms of conventional attacks like fire, shockwaves, and lasers. But he's most known for his primary power: Magic Absorption. Tirek can absorb the magic from other entities. Not only does this increase his power and size, it also seems to give him the ability to use said magic as he gained Discord's reality-warping after draining Discord's magic but also a level of magic resistance as after a certain level of power even the Alicorn Princesses couldn't stop him and they have access to almost every spell in The Owl House. Because magic acts as lifeforce for witches, this would be functionally lifedrain against most of the opponents here. What's worse is that Tirek can drain the magic from Earth Ponies. Earth Ponies use a very subtle kind of magic derived from the land itself which Tirek can drain. But it's not like this is a world where all magic is derived from the ground which is a giant corpse full of magic....Not only could Tirek likely drain everyone in the verse of magic, he can possibly drain the very Titan's body itself for its magic going into a titan form like Luz did. Granted Tirek does say he can only drain the magic of "living" beings so it's possible and even probable he can't, though the context makes it unclear if he means living as in non-dead or just living as in organic as he was explaining he couldn't drain the energy of the Bewitching Bell's barrier. 

Even ignoring that, Tirek after getting stronger gains access to numerous abilities that would be broken. His primary battle tactic is telekinetically holding enemies prone while he throws them around or holds them paralyzed something that would prevent anyone in the tier from creating circles. He has the ability to open portals to Tartarus and send people in, something that no one could return from as only King has any titan's blood, and he doesn't have the knowhow to build a portal. While Tirek would be more vulnerable in his base form, Tirek also happens to be a master of stealth and manipulation having gotten past Canterlot security and manipulating Discord to side with him among other feats. All of this without the Bewitching Bell a magical item that can be used to nullify magic used against the wielder.

Tirek's main weakness is his arrogance. There are plenty of people in the Owl House who I think could trick Tirek but that wouldn't actually be that helpful. Many people in the Owl House were also able to trick the Collector but that didn't give them any potential win condition against him. However it's possible Belos might be able to beat him. Belos uses strange magic that may not even be magic and might be technology as witch's wool doesn't protect against it. He's maybe the best manipulator in the series and most of all Tirek can't drain magic from non-living things and Belos' degenerated sludge form might not count and could potentially possess Tirek if Belos tricks him. However I think the best counter would be

Omega Abigail from Bastard!!

Abigail's power even in his normal state was strong enough to create a giant explosion of energy like a nuclear explosion. Omega Abigail is even stronger, having the Devil's Mace which can be used to destroy cities. This means he would be on the high end of the tier in terms of power. In terms of speed, his movement speed is negligible here, but he should scale to fellow Rider of Havoc Gara and lesser characters like Zakk Walder who have intercepted lightspeed attacks suggesting he should be able to react to most characters in the tier, outside maybe Palismans and Hunter. 

Omega Abigail is Abigail after gaining the Omega Armor formed from the combination of the three demon treasures and them forming into a mech suit. The three demon treasures almost feel like they were designed to counter The Owl House. All of them are the "ancient magic" that is to say technology from before the apocalypse and so ignore the magic resistance of witch's wool and Basilisks.  The First, the Demon-Mail is armor that makes one impervious to magic which would nullify almost any offense in the verse when coupled with its sheer durability. The second is the Devil's Mace. The Devil's Mace absorbs magical energy and life energy of a country wide scale and channels the energy into city destroying earthquakes. There was an event in the Owl House called the Day of Unity where all magic-users were planned to be destroyed by Belos through draining their magic. The Devil's Mace would have that effect on the Boiling Isles, passively and constantly without even asking. And when it attacks the shockwaves of its blows would absolutely mess up any attempt by a witch to draw a circle to create magic as it would mess up the materials from the impact and knock people off center and off their feet. Finally there's Satan's Ring which lets the user empower themselves with the energy drained off the Devil's Mace and cast Giran Ira, a spell that opens a subspace portal to other dimensions which physically sucks people in, something that one again, no one in the tier can naturally return from. Hunter and Witches flying on Palismans might be able to escape from the impact shockwaves of the Devil's Mace but would still be having their energy constantly drained and risk getting sucked into Giran Ira.

Attempting to blitz Omega Abigail would be the best shot the tier would have, but it depends entirely on how far away he starts from them, and given his maximum range is vastly further then anyone in the tier, the chances don't look good. This isn't even getting into Abigail's own capabilities. Abigail is a powerful evil cleric and necromancer. Abigail's own spells are quite potent some of which include Heretic which summons vines to bind opponents and keep them from moving similar to something a Plant Magic user would use, Forbidden which summons a large horde of vengeful ghosts to attack opponents and Blind Guardian which summons hundreds of meters of black brambles that induce eternal sleep, both of which can be used to crowd control a lot of enemies, and Wasp. Wasp lets the Caster exorcise demons from the material plane which is a form of dimensional BFR even more extreme than Giran Ira, and would instantly beat any demon in the verse if the force doesn't rip them apart. Abigail also has the benefit of being a supergenius intellect who was one of the Wise Men of Europa who created the demonic war machine Anthrax as well as the computer back ups of his brain to regenerate from. He even has a magical girl transformation, which is oddly fitting for the verse.

And that leaves out possible Abigail's most dangerous capacity. Abigail is a master of necromancy, the raising and controlling of the undead. It is possible Abigail may be able to raise the bodies of the titans as undead minions of his. Now Liches were not under Abigail's control so it's possible being sufficiently powerful means that a Necromancer can't control them though it's also possible that because they turned themselves into undead and he didn't raise them is the root of them not being controlled. If it is possible, then Abigail can simply turn the Titan itself into a Zombie Titan minion of his which would be rather overkill for the tier.

Small Star Tier:

At the end of Season 2, a strange shadow creature worshipped as a cult by the titan-trappers and who was the one who taught Belos his magic was returned to physical existence, appearing as a floating small child, called the Collector. With one gesture he reduced Belos, the strongest character at the time to sludge, and with gesture of his finger moved the Moon at over 1% the speed of light requiring energy of 12.3 Ninatons with the energy to destroy the smallest star we know of , OTS 44, being 16.5 Ninatons. This was the massive jump in power for the verse. Given how casual the feat is, it's quite likely that The Collector reaches the Small Star range, let along the characters even stronger he is. The Collector would turn out to be a child from a race of spacefaring godlike aliens called the Archivists which may be able to move stars depending on how you interpret the Collector's visual display. Even more impressively, The Collector brings King to his bedroom, its own dimension which has many starts in the background and the audio description of the episode describes as a "galaxy sized bedroom." However it's not entirely clear if this was a space the Collector MADE or it's one he FOUND and simply uses as a bedroom. The Archivists are a spacefaring race, with The Collector returning to the stars and returning in the span of the four year timeskip at the end of the series. Stars are generally several lightyears apart meaning this feat is definitely FTL and realistically thousands of times the speed of light or more.

The Collector demonstrates a wide variety of abilities but broadly speaking he is a reality warper. He can create reality-warping waves of energy that changed the Boiling Isles and possible further beyond into various games including shapeshifting himself into being Pac-Man. He regularly demonstrates summoning, shapeshifting, telekinesis, and transmutation including transmuting people into puppets under the Collector's control. He can teleport and create portals between dimensions. He was able to trap Luz and her friends in dreams while awake of things they feared (that only was broken by Titan Magic) and taught Belos all the non-glyph magic including the draining spell, a form of large-scale magic drain. It required the eclipse for Belos to use, though the Collector could create an eclipse himself if he wanted to use the same ability. As he taught Belos his magic making him arguably the strongest witch on the Boiling Isles, The Collector should scale to almost every magic from the prior tier. He also shows enhanced senses like clairvoyance and sensing Belos trying to possess him, and it's strongly implied he can effect physical laws. Not only does he warp the reality of the Boiling Isles to resemble whatever game he chooses, but when he was unsure what mortals ate suggesting it might be rocks, fire, or gravity suggesting that the consumption of gravity or at least giving other people gravity to eat would be possible. His weakness is that he's only a child and quite gullible but presumably this isn't a weakness for the rest of the Archivists though the capabilities and limitations of an adult Archivist wasn't seen. According to the Collector's book, their role is observe the passing of time and seal away entities from each species to eternally preserve them. This suggests at least Adult Archivists and possibly the Collector can eternally seal entities. 

However even stronger then them back in the ancient past were the Titans. The Collector claimed the Titans were stronger than anyone, and by his tone it wasn't close. This is actually seen in the series as Belos fuses with the decayed body of the old titan and became a relevant threat to the Collector before Luz merged with the remaining magic turning into Titan Luz who was capable of defeating him. The only titan still living is King so what they can do is unknown but the power of the titans within their blood is one of the biggest plot devices in the series due to the sheer power contained in just drops of their blood remaining. All Titans are immune to the magic of the Collectors, though somehow the Collectors succeeding in wiping out the Titans involving a trap. One of the Titans demonstrated the power to seal away the Collector in the "In Between Realm" a realm existing between dimensions and the boundary and life and death. This same Titan's soul remained there even after dying and after Luz died, infused her soul there with his remaining power, returning her to the living world. He also stated that he was able to watch King from there with it being a somewhat recurring element in the series that the Titan was communicating with Luz and helping her learn the glyphs faster than normal. So all in all Titans have resistance to at least Collector Magic, top tier power, the ability to somewhat still act as a soul, sealing, likely soul manipulation, power bestowal, and interdimensional sensing and communication abilities at least as souls themselves.

The last two characters in this tier are two humans given access to part of the Titan's power, Titan Belos and Titan Luz. Belos fused with the decaying body of the Titan, becoming a gargantuan creature. In addition to the prior abilities amplified by the physical power boost of a titan, Belos' sludgy physiology is spread far faster by his titan form, demonstrating the ability to grow as a mold on people, which consumes the life of things it touches and causes thing to evaporate into light. He can also spread it via breathing a fiery gas breath like a dragon that similarly spreads his infectious mold. Opposing him was Luz after being given the remaining magic, the spirit of the Titan. While she had the same abilities before, they were amplified by the power of a titan. She was able to perform the same Titan shout that King can and created red vegetation that seemed to counteract Belos' mold. 

So what possible strategies could you use on this tier?

While information on adult Archivists and Titans is very scarce, some general things can be intuited. For one, Collector's reality-waving and almost all his powers traveled as an energy wave between people. It's possible to just dodge it, reflect it (though Collector can likely just shapeshift back if his own power transmuted him), and spatial manipulation can be used to avoid any of their attacks. Spatial Sealing such as Dimensional Sealing seem to work on them well as the Titan was able to use them to seal them without them able to defend. They also seem to have some difficulty affecting metaphysical things. The Collector explicitly couldn't resurrect Luz after she was mostly killed and sent to the In-Between Realm. As such a metaphysical entity could be resistant to a number of their abilities. Unfortunately but not coincidentally, these things happen to be things Titans CAN do, with even a mostly dead Titan able to imbue Luz' soul with his remaining lifeforce and return her from the In-Between Realm to the Demon Realm. Titans on the other hand have the weakness of various forms of biological manipulation as unlike Collectors they seem to be normal mortal biological entities, if gargantuanly large ones. 

This actually leads me to one particular power that seems to be the intersection of their two weaknesses: that being Time Manipulation. Time Manipulation is a thing in TOH but only in a very specific context using time pools, and is strongly implied to not be a thing the Archivists or Titans can use freely. Like Space Manipulation, Time Manipulation can be used to dodge any particular attack but by shifting into a different time, even with cosmic range an attack from an Archivist wouldn't do anything. While the Titans are very powerful, it's clear that both they and the Archivists are subject to age meaning aging them to death or going back in time and keeping them from being born should work. 

What else could be helpful? Well neither the Archivists and the Titan seem to have very good passive sensory abilities. The Collector showed many active ways to boost his senses, but his only passive sensory feat was sensing Belos trying to possess him. Therefore a character who can utilize stealth would be good, especially as power in the Owl House-verse tends to be rather flashy and hard to miss. Neither side has any large skill feats, and while it's not unthinkable they might be skilled, any character with high skill with by default have much higher skill then anyone but maybe Titan Luz and Titan Belos (who even then are noted to not have much experience with their new powers)  While this presumably wouldn't be a weakness for the Adult Titans and Archivists, all three of the Collector, Titan Belos, and Titan Luz have notable personality weaknesses that could be exploited by a cunning opponent as well. 

Finally it's implied that while extremely powerful both the Titans and the Collectors powers are mostly still magic and so anti-magical abilities might still be helpful.  

So who would be a good pick? You could pick

The Ultrasphinx from All-Star Superman

The Ultrasphinx is a Godlike Time Traveler from the 80th Century BC who can manipulate the quantum field. All-Star Superman after being Solar Amped scales to the Sun-Eater and Solaris the Tyrant Sun which are Star Level. The Ultrasphinx power level is not clear but he scales above Lois Lane with base Kryptonian powers. As the Solar Amp is implied to have multiplied Superman's power by roughly 3x or perhaps a bit more, this means the Ultraphinx should have 1/3rd or higher starbusting power putting him very high small star level. In terms of speed, Ultrasphinx should scale to Kryptonian Tier characters from this verse with Superman going to Alpha Centauri and back to get an alien flower for Lois while she was showering, a speed feat that's likely in the same level of speed as the Archivists. 

The Ultrasphinx manipulates the Quantum field to time travel and suspend other characters in a state of "quantum uncertainty, neither alive nor dead." This is very equivalent to BFR-ing someone to the In-Between Realm, something the Archivists can't naturally escape from, The Quantum Field can also be used to age biological entities, something that would likely work on the Titans and Titan-Powered Entities. This means the Ultraphinx would have a likely one-shot option against anyone in the verse. 

Defensively the Ultrasphinx also has the defensive benefit of the Quantum Field. The Quantum Field in DC is considered pure antimagic, and gives its wielders like Captain Atom a resistance to magic. As a fellow wielder of the Quantum Field, Ultrasphinx should have similar resistance and would have some level of resistance against any magical ability in the tier which includes the vast majority of the Titans and Archivists' abilities. He also can obviously travel freely in time avoiding any attack or fight he wants too. 

In addition the Ultrasphinx is a genius intellect. He is known for presenting people with the unanswerable question (What happens when an Irresistible Force meets an Immovable Object) and if the question is not answered sufficiently, causing the quantum state to collapse in the state of death. However this is where I think he could possibly be beaten, specifically by Luz and Belos. Both of them are known for their higher intelligence and ability to persuade others. Luz in particular is also a massive nerd who's probably heard this famous paradox and potential answers a thousand times. So it's possible that while neither of them are as smart as All-Star Superman, they may be able to give a sufficient answer. Also Titan Belos may be able to infect the Ultrasphinx as it seems to be conventional biological entity. 

Another counter you could use is

Istvatha V'han from Champions. 

In terms of raw power, Istvatha would probably be weaker than the tier as she's stated to be on the lower side of the Cosmic Champions levels of power, though should still have enough power to destroy planets with planet-destroying power being the high end of normal Champions games, and the lower end of Galactic Champions campaigns. One of the ways noted villains at this scale try to destroy the world is to "increase the Sun's power output to destroy the planet." Noticeably increasing the Sun's power depending on interpretation may be a small star level feat that might scale to Isvatha V'han. Similarly "standard enemies" in a Galactic Champions campaign are stated "might threaten several worlds (or solar systems) at once" with destroying several worlds being at large planet level and potentially higher. As such Istvatha may be weaker, but she could also be in the same tier. Standard Cosmic Travel speed in the Champions Universe that Isvatha should scale to would is 250,000 lightyears per year, otherwise known as 250,000c giving her a broad speed advantage over the tier. 

Isvatha V'han is the alien queen of a billion dimensions, most famously known for her supergenius social manipulation, able to efficiently run an empire of many millions dimensions such that they are all relatively wonderlands and there is broadscale peace and prosperity according to her will, manipulating dimensions after dimensions to join her. This level of psychological warfare is something that seems like it would be extremely strong against the tier.

Even if she has to get into a direct fight, Isvatha V'han is famous for her dimensional manipulation and for being one of the few characters in the Champions Universe to gain time manipulation. While she prefers not to use it for fear of messing up the timeline, she will if she thinks she is threatened. Her dimensional manipulation is strong enough to open dimensional tears on someone's position ripping them spatially in half and can transport herself and others through dimensions to bfr them. While it is noted she has trouble transporting her armies, her armies consist of the militaries of millions of dimensions so teleporting some number of Archivists or Titans would likely not be a problem. And of course as mentioned she can simply avoid fights by teleporting through time and attacking them at their weakest point, something she calls "a temporal flanking maneuver." She also has numerous defensive tools including a general resistance to mental manipulation and supernatural luck to protect against attacks that can be dodged against like the Collector's reality-warping or Belos' attempt to biologically assimilate her. 

This is all without the thing that is usually her biggest asset which is the largest army in the Champions World, the forces of many millions of dimensions. The only weakness she has is that she has quite low combat skill avoiding fights herself when at all possible. It's possible she could be overwhelmed by large numbers, especially as she doesn't have magic resistance of any kind other then general mental resistance. While she does have a general resistance field against powers in general, this is only good for defending against low tier powers and not the cosmic reality-warping of something like the Archivists. The numbers of Titans originally and Archivists is unknown and while she could at least theoretically avoid any combat vis her time manipulation, she is somewhat reluctant to do so. So for the best counter I would suggest

Grandmaster Dashi from Xiaolin Showdown

Grandmaster Dashi scales to Wuya who created her insignia on the Sun and in his Xiaolin Showdown with Omi he seemed to cause the Sun to turn into a Taijitu, suggesting at least Small Star Level power on a much higher scale then even implied by The Collector's casual feat. While the Collector may scale to creating a room with a starry sky and is stated to be the size of a galaxy, Dashi's Wu can be used to contain "The most destructive force in the universe" which may scale him as well to the powers of quasars and similarly powerful cosmic events that are similarly powerful. Dashi can also seem to create the Xiaolin Showdowns by his own power, these Showdowns able to bring people far into space in seconds, which would be hundreds to thousands of times the speed of light, putting him in a similar range to the Collector's speed feat.

Dashi with his power was able to create the Shen Gong Wu and can use their powers freely, at least by recreating them at will which he can do. This includes most of the abilities seen by the Archivists and the Titans. He can teleport through space with the Golden Tiger Claws and through time with the Sands of Time. trap people in metaphysical realms with the Yin-Yang Yo-Yo, transmute people with the Sapphire Dragon and the Zing-Zom Bone. He can even replicate the ability to set physical laws and turn the world into kinds of games the way the Collector does, as he can initiate and control Xiaolin Showdown which similarly warp the world into forms of games. It is extremely in-character for both of them for Dashi and The Collector to engage in some kind of reality-warping game, and Dashi to teach Collector a lesson through it. Beyond this not only does he have the aforementioned time manipulation he can reflect attacks via the Reversing Mirror or turn intangible with the Serpent's Tail which would make him relatively difficult for the Archivists to defeat. He can seal them away with the Puzzle Box or even worse for them can use the Sphere of Yun to trap one and gain its powers. 

Where Dashi really shines though are his mental stats. Dashi is the only known Grandmaster Dragon, the highest rank of Xiaolin Dragon, where even the lowest rank have demonstrated superhuman levels of skill. Dashi would absolutely possess Tiger Instincts which is outright precognition as to what his enemies is gonna to do, even without the Shen Gong Wu that also does that. This would allow him to react in perfect clarity, including traveling through dimensions or time to avoid any attack someone tries on him. He is also known for his extremely high intelligence and awareness and could very likely manipulate anyone in the verse he comes across. If he wanted more he could use the Fountain of Hui and Eagle Scope to gain literally infinite knowledge.

Dashi also has two more arguable defensive tools. One is that given he fought a long drawn out battle with the reality-warping Witch Wuya who should be similarly strong to an Archivist, Dashi likely has resistance to most or all of their abilities. Second is that he seems to be able to act as just a ghost as when the second puzzle box was opened he showed up as a ghost and reduced her to a ghost again. Being a ghost gives one resistance to most of the Archivists abilities and reducing someone to a ghost would absolutely work on the mortal titans. 

Overall Dashi would have no weaknesses in the Owl House. He would know everything anyone's going to try against him, can defend in a wide variety of ways including arguably some that are passive, can attack and one-shot in many ways, can use most of the verse's powers usually with higher skill and intelligence, can outwit the verse with arguably infinite intelligence and out-skill the verse by a superhuman degree.

And that's how to be OP in the Owl House-verse