MHA Story And Quirk Ideas

Quirk: Attack Reflection

Izuku's quirk is Attack Reflection. It's a Mutation/Emitter type that allows Izuku to redirect any attack used on Izuku. He can also store Quirk Attacks on his body to release on something else. Izuku cannot redirect the effects of quirks like Decay or Overhaul, that harm the body itself, only store it and release it on something else. Other quirks like Explosion or Zero Gravity can be reflected automatically. Explosion because it's a force from outside the body. And Zero Gravity because it's a type of energy, although Zero Gravity can also be Absorbed. The only non-passve part of this quirk is the absorbsion and release part, which is activated on command. This is one of the few Mutation quirks Erasure can erase.

Izuku's storage space starts out small, but once it's filled up to it's Max, it expands until it can hold all of the excess, and then THAT is the new maximum. Theoretically this process is infinite.

The expansion has conciquinces however. It stresses his body, meaning his hair will gradually become white by continually training that aspect. The second consequence is that he gets migraines of diffrent intensities depending on how much it has expanded in one sitting. Once it reaches 10 times it's max of the max in the beginning of that session, the migraine reaches an intensity that becomes too much for him and he passes out from the pain.

When the Absorbtion part is active, his passive Reflection is deactivated. Stored quirks are like a liquid. For this example, I'll use Decay. Shigariki activating Decay on Izuku is like Shigariki pouring a glass of water. Izuku's Absorption Tank is the cup. When Izuku "releases" he's pouring Decay's "water" on the object. Hence Izuku used Decay on whatever he poured it on. The downside to Absorbtion is that he can only store one "liquid" at a time. So if Decay is in his Tank he cannot absorb Overhaul.

[Quirks/Things Izuku can Absorb are as follows: Thermal Energy, Electrical Energy, Kinetic Energy, All quirks that work with a type of Special Energy, all Quirks with Energy, Light itself,  Stockpile Quirks, Decay, Overhaul, All for One (but he cannot steal quirks, only delete them temporarily, and Absorbtion needs to be active before All for One is used on Izuku), Erasure (He has to have his Absorbtion activated before Erasure is, otherwise Erasure is successful), Copy (Again, Absorbtion needs to be active before Copy is. In using this "liquid", it turns into the "liquid" of the next person Izuku touches), Zero Gravity, One for All (though its Stockpile will be refilled by the next day), Wave Motion, Naval Laser, Dark Shadow (He absorbs it's Darkness, weakening it. Not Dark Shadow (him, her, it?)self), Rewind, Chronostasis, Heal (it works with his hands), Telekenetic Quirks, Stress (The quirk, he kind of yoinks his Stress away and uses it himself), Warping Quirks (Warping quirks have GOT to have some sort of special energy that allows it to warp, though it allows Izuku to Teleport instead of Warp), and Life Energy (This is your Lifespan. Izuku can take it from others to extend his own)]