Kasai Henkan

Quirk
Alteration (変更): Kasai's Quirk grants him the ability to transform into a flaming creature that follows his commands. Depending on the object or limit, the alter ego will have certain strengths. The thing is that Kasai can spend twenty minutes with his alter ego before feeling severe pain in his head, and his creature, being made of fire, have a time limit as to existing; the larger the alteration, the shorter the time limit, and the larger of stress that's placed on Kasai.