Orochimaru, dark summoner

Ninjutsu {1}{Pb}{Pu}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Dark Summoning Jutsu - When this creature enters from your hand, if it’s attacking, return up to two Legendary Creature creature cards your opponents graveyard into play tapped and attacking. If you do exile those creatures at the beginning of your next end step.