Kirche, Bane Of The Dead

Whenever Kirche, Bane Of The Dead kills a
creature exile it, then put 2/2 black zombie
creature token onto the battlefield, gain 1 life
and draw a card.
Sacrifice 3 zombies: Return Kirche, Bane Of The
Dead from your graveyard to the battlefield.
{w}{u}{b},{t}: put 2/2 black zombie creature token
onto the battlefield, gain 1 life and draw a card.