Ulamog, the Infinite Gyre [From the Vault: Legends] Aura then shuffle your library

then shuffle your library

Set: Beta Edition Type: Instant Rarity: Uncommon Cost: {U} Cast this spell only during an opponent's turn

put it onto the battlefield

It surveys the withering landscape

When Ancestral Knowledge enters the battlefield

Ulamog, the Infinite Gyre [From the Vault: Legends] Aura then shuffle your librarySet: From the Vault: Legends Type: Legendary Creature Eldrazi Rarity: Mythic Cost: {11} When you cast this spell, destroy target permanent. Indestructible Annihilator 4 (Whenever this creature attacks, defending player sacrifices four permanents.) When Ulamog, the Infinite Gyre is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.