Pile of Flesh

When Pile of Flesh enters the battlefield, exile X
creatures from your graveyard, put X +1/+1
counter on Pile of Flesh.
When Pile of Flesh takes damage, withdraw a
+1/+1 counter from it and create a 1/1 black
zombie creature token.
{b}{b}: Sacrifice a creature, put a +1/+1 counter
on Pile of Flesh.