Sayu, Pro Procrastinator

Commander Ninjutsu {b}{g} - (Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand or the command zone
tapped and attacking.)
Whenever Sayu or another Ninja you control deals
damage to an opponent, reveal the top card of your library. If its land card, put it onto the battlefield. If
its a nonland permanent, put it into your hand. If
its an instant or sorcery spell, put it into your graveyard, it gains Jump-start until your next turn.