Feaster of Fools is a uncommon Creature — Demon card from Modern Horizons (MH1), collector number 90. Current market price: $0.24 (foil $0.27), TCGplayer market prices via Scryfall.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Flying Devour 2 (As this creature enters, you may sacrifice any number of creatures. It enters with twice that many +1/+1 counters on it.)