Ravenous Corpse Eater

Whenever Ravenous Corpse Eater destroys
a creature, you may exile it and give
Ravenous Corpse Eater a +1/+1 counter.
When Ravenous Corpse Eater attacks, you
may Compost 1. (Exile a creature or land
from your graveyard and give target creature a
+1/+1 counter)