Ulamog, the Ceaseless Hunger [Battle for Zendikar Prerelease Promos] Commander's Arsenal then add one mana of

then add one mana of any color

Set: Betrayers of Kamigawa Type: Artifact Rarity: Rare Cost: {5} The "legend rule" doesn't apply

When Mulldrifter enters the battlefield

Set: Arena League 2001 Type: Basic Land — Swamp Rarity: Rare ({T}: Add {B}

Ulamog, the Ceaseless Hunger [Battle for Zendikar Prerelease Promos] Commander's Arsenal then add one mana ofSet: Battle for Zendikar Prerelease Promos Type: Legendary Creature Eldrazi Rarity: Mythic Cost: {10} 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. A force as voracious as time itself.