Screecher of the Hollowed Eve

Flying
Dread (Whenever one or more cards are put into an opponent's graveyard from anywhere, this creature gets +1/+1 until end of turn.)
Sacrifice a creature: Screecher of the Hollowed Eve gets +2/+2 until end of turn.
"Let your faith guide you to the light, and you will find yourself prey as moths are to a bat."