Quirk: Metamorphosis
Quirk Type: Transformation
Quirk Class: Quirk and Body Morph
Ability - The user can change what they look like and fuse their attributes with animals and people. If the user has a clump of DNA of a person (more then just a strand of hair) or has something sentimental of someone (drivers license, autograph for example), they can fuse into them. Dark blue balls grow all over the user, pulsing as the user is completely covered. They are unmoving other then the pulsing balls. After 1-3 minutes, the balls will grow back into the user and they will emerge although a lot different. They will be part them and part 6 other things. Animals or humans. If they take attributes of a person, they also get their quirk although slightly weaker corresponding to how many other fusions the user has. The user will still act fully like themselves but may have Todoroki hair but their face, Death arms arms and Miriko's legs. The user can maintain their fused form for 3-1 hours depending on how many things they fused with before reverting back into their 'cocoon' like state. (The user does get stronger and bigger corresponding with the people they fuse with but don't get smarter both mentally and emotionally. They can also get smaller and weaker from who they fuse with.)
Combat Range: None and All
Disadvantage/s: - The user is left open when they are changing. They also have to get materials of animals or people if they want to transform.
- If the user is attempting to transform into too many things, they will emerge as a meaty mess o hair, limbs, and organs and by in incredible pain for 10 minutes before reverting.
- The get all the weaknesses of their fusion.
Special Moves: Metamorph - The user can create these dark blue balls while they are fused (same as when they are transforming.) If the user can cover a large portion of an enemy, the enemy will go limp as they can't move. The user can't add their attributes to their already fused person but the enemy can't attack or fight back at all.
Hero/Villain Name ideas: Cycle, Butterfly, Horizon, Resurrect
My Input (not necessary): This is a fusion quirk! I have been trying hard to make a quirk about fusion for a while but never could make it work in the realm of my hero. I thought of it when figuring out what to do with the cocoon quirk. I love this quirk idea and hope I translated it well.

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Future Quirk Concepts (2)
FanfictionSecond book on this topic. Just some ideas that can be infused with the would of My Hero Academia. No need to credit as a lot of ideas are no longer original.