Abilities Tier List

This is how I conceptualize how good a characters abilities are. There's five tiers. Being high in that tier denotes a versatile type of ability while being low in that tier denotes the ability being limited or having caveats.

F Tier: Abilities that are basically useless in combat
Low F Tier: Abilities that are more of a detriment then a help (example: having non-functioning wings for arms, being feral, water-breathing without the ability to breath on land)
Mid F Tier: Abilities that are cosmetic or have no function in combat (example: supernaturally good at a mundane skill like golf or cooking, can change hair color at will, superhuman alcohol tolerance)
High F Tier: Character has abilities that don't help usually in combat but might every once in a while help in a very specific scenario (examples: water-breathing, agelessness, resistance to brainwashing)

D Tier: Abilities that could realistically help against against an opponent of similar power or weaker
Low D Tier: Abilities that can only really help against opponents that are weaker (examples: a planet level character able to passively emanate city levels of energy, powers that don't work against people strong enough when that level is drastically lower then the user)
Mid D Tier: Abilities that are helpful in some situations but aren't universally applicable (examples: clinging to walls, clairvoyance, heat vision (detecting heat, not laser eyes))
High D Tier: Abilities that are generally helpful in most fights against a similarly powerful opponent (examples: regen (low types)), elemental projection, peak or near peak human skill or intelligence)

C Tier: Abilities that are versatile or hax enough and can generally ensure victory against a similarly powerful opponent that is not as versatile
Low C Tier: Abilities that drastically change a fight's dynamic (examples: teleportation, attack reflection, superhuman intelligence or skill)
Mid C Tier: Pseudo Haxes that give a high tactical advantage (examples: invisibility, strong telekinesis, regen (mid types) or abilities that ignore physical stats but take time (like disease manipulation or slower energy-draining)
High C Tier: Highly versatile powersets that give some low level of hax (really strong elemental manipulation, fundamental forces manipulation, time travel without acausality, duplication (low numbers))

B Tier: Abilities that allow for the defeating of a vastly stronger opponent
Low B Tier: Really Strong Physical Abilities able to beat a physically much stronger enemy (examples: regen (high types), matter-energy hax, activated intangibility without limitations, duplication (high number))
Mid B Tier: Physically-Transcendent Abilities that make it impossible to be beaten physically or which completely avoid physical defenses (examples: passive intangibility, brainwashing, soul-stealing)
High B Tier: Haxes that avoid all physical stats (examples: passive existence erasure, astral/mental existence, large scale spacetime manipulation, regen (godly), spiritual manipulation, corruption/purification)

A Tier: The Strongest abilities in fiction, requiring the strongest level of opponents in fiction to beat
Low A Tier: Haxes that transcend any lower plane (examples: spiritual/aristolean conceptual existence, conceptual manipulation, power nullification, probability manipulation (high), passive corruption/purification)
Mid A Tier: Some of the strongest powers as instances, techniques or specific individual things in fiction (infinite reality-warping, absolute/metafictional manipulation, platonic conceptual existence, power copying/absorption (strongest))
High A Tier: More versatile then the below, the strongest powers in fiction which the Mid A Tiers are subsets of (examples: metafictional/absolute existence, trans-duality, reality-warping (infinite and conceptual), plot manipulation)