Beelzebub, Lord of Flies

+1: Put a -1/-1 counter on a creature of your choice. If that creature dies, draw a card.
-1: Exile a graveyard of your choice. For each creature exiled this way, create a 1/1 black Fly creature token with flying.
-5: Destroy all creatures with at least one -1/-1 marker on them. Draw one card for each creature that dies this turn.