Ulamog, the Infinite Gyre

Legendary Creature — Eldrazi    (CMC:11)

When you cast this spell, destroy target permanent. Indestructible, annihilator 4 When Ulamog, the Infinite Gyre is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.

004 UMA_BOX • ENAleksi Briclot

™ & © 1993— Wizards of the Coast

Notes: TODO: Update Copyright

Legal in: Modern,Zendikar Block,Legacy,Vintage,Freeform,Prismatic,Tribal Wars Legacy,Singleton 100,Commander

Oracle Text (click to copy):

Ulamog, the Infinite Gyre {11} Legendary Creature — Eldrazi When you cast Ulamog, the Infinite Gyre, destroy target permanent. Indestructible Annihilator 4 (Whenever this creature attacks, defending player sacrifices four permanents.) When Ulamog is put into a graveyard from anywhere, its owner shuffles his or her graveyard into his or her library. 10/10

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View this MTG card on Gatherer

6/15/2010
Annihilator abilities trigger and resolve during the declare attackers step. The defending player chooses and sacrifices the required number of permanents before he or she declares blockers. Any creatures sacrificed this way won't be able to block.
6/15/2010
If a creature with annihilator is attacking a planeswalker, and the defending player chooses to sacrifice that planeswalker, the attacking creature continues to attack. It may be blocked. If it isn't blocked, it simply won't deal combat damage to anything.
6/15/2010
In a Two-Headed Giant game, the controller of an attacking creature with annihilator chooses which of the defending players is affected by the ability. Only that player sacrifices permanents. The choice is made as the ability resolves; once a player is chosen, it's too late for anyone to respond.
7/1/2013
Lethal damage and effects that say "destroy" won't cause a creature with indestructible to be put into the graveyard. However, a creature with indestructible can be put into the graveyard for a number of reasons. The most likely reasons are if it's sacrificed, if it's legendary and another legendary creature with the same name is controlled by the same player, or if its toughness is 0 or less.

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