Sakashima's Student

Ninjutsu {1}{u} ({1}{u}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

You may have Sakashima's Student enter the battlefield as a copy of any creature on the battlefield, except it's still a Ninja in addition to its other creature types.

"Masks don't hide our identities, they create them."