Ulamog, the Ceaseless Hunger [Commander Masters] SM73 where X is that creature's

where X is that creature's mana value

Set: Aquapolis Type: Colorless Rarity: Rare Retreat cost: Colorless

Set: The List Type: Enchantment Rarity: Rare Cost: {G} Whenever any opponent plays a land

Brood Tyrant enters the battlefield or attacks

its owner shuffles their graveyard into their library

Ulamog, the Ceaseless Hunger [Commander Masters] SM73 where X is that creature'sSet: Commander Masters Type: Legendary Creature Eldrazi Rarity: Mythic Cost: {10} A force as voracious as time itself. When you cast this spell, exile two target permanents. Indestructible Whenever Ulamog, the Ceaseless Hunger attacks, defending player exiles the top twenty cards of their library.