Kiyoshi, Soundless One

Ninjutsu {2}{u} ({2}{u}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Kiyoshi, Soundless One deals combat damage to a player, you may return
a creature from the battlefield to your hand.
{u}{u},{t}: Target creature can't be blocked this turn.