Ulamog's Nullifier is a uncommon Creature — Eldrazi Processor card from Modern Horizons 3 Commander (M3C), collector number 275. Current market price: $0.30, TCGplayer market prices via Scryfall.
Devoid (This card has no color.) Flash Flying When this creature enters, you may put two cards your opponents own from exile into their owners' graveyards. If you do, counter target spell.