Irma, Part-Time Mutant (Surge Foil) (TMC-012) - Commander: Teenage Mutant Ninja Turtles Foil
At the beginning of combat on your turn, Irma becomes a copy of up to one other target creature you control, except her name is Irma, Part-Time Mutant and she has this ability. Then put a +1/+1 counter on her.
