Ulamog, the Infinite Gyre [Rise of the Eldrazi] Exodus the battle is its own

the battle is its own purpose

"There will come a time when the only prey left will be each other

When Animate Dead enters the battlefield

sacrifice Groundbreaker

Set: Amonkhet Invocations Type: Sorcery Rarity: Mythic Cost: {B}{B}{B} Search your library and graveyard for five cards and exile the rest

Ulamog, the Infinite Gyre [Rise of the Eldrazi] Exodus the battle is its ownSet: Rise of the Eldrazi 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.