Ulamog, the Ceaseless Hunger is a mythic Legendary Creature — Eldrazi card from Battle for Zendikar Promos (PBFZ), collector number 15s. Current market price: — (foil $58.89), TCGplayer market prices via Scryfall.
When you cast this spell, exile two target permanents. Indestructible Whenever Ulamog attacks, defending player exiles the top twenty cards of their library.