Skull Scavenger

Prowess

Whenever another creature dies, create a Spoils
token. (It's an artifact with "{t}, Sacrifice this
artifact: Target creature you control gets +1/+1 until
end of turn.")

Coven — Sacrifice a Spoils token: Exile the top card
of your library. You may play that card this turn. Activate only if you control three or more creatures
with different powers.