Orochimaru, The Snake Sannin

Ninjutsu {3}{b}{b} ({3}{b}{b}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Orochimaru, The Snake Sannin deals combat damage to a player, you may put target creature card from that player’s graveyard onto the battlefield under your control.

{1}{b}: Regenerate Orochimaru.