Ulamog, the Defiler
Legendary Creature — Eldrazi
When you cast this spell, target opponent exiles the top half of their library, rounded up.
Ward—Sacrifice two permanents.
Ulamog enters with a number of +1/+1 counters on it equal to the greatest mana value among cards in exile.
Ulamog has annihilator X, where X is the number of +1/+1 counters on it.
7 / 7
Commander bracket
Derived from card traits, not a ruling — bracket rules turn on how a deck intends to use a card. Bracket rules
EDHREC
Combos
Not part of any combo on Commander Spellbook.
Commander recommendations
Top synergy 50
Played far more in this commander's decks than elsewhere.
- It That Heralds the End
- Eldrazi Temple
- Breaker of Creation
- Oblivion Sower
- Geode Golem
- Urza's Incubator
- Zhulodok, Void Gorger
- Kozilek's Channeler
- Conduit of Ruin
- Ulamog, the Ceaseless Hunger
- Eye of Ugin
- It That Betrays
- Artisan of Kozilek
- Ulamog, the Infinite Gyre
- Idol of False Gods
- Herald's Horn
- Roaming Throne
- Void Winnower
- Kozilek, the Great Distortion
- Bane of Bala Ged
- Spawnbed Protector
- Not of This World
- Emrakul, the World Anew
- Pathrazer of Ulamog
- Kozilek, Butcher of Truth
- Sire of Seven Deaths
- Endbringer
- Cavern of Souls
- Gilded Lotus
- Kozilek, the Broken Reality
- Calamity of the Titans
- Crashing Drawbridge
- Ugin's Labyrinth
- Ulamog's Dreadsire
- Desolation Twin
- Emrakul, the Promised End
- Ulamog's Crusher
- Eldrazi Conscription
- Echoes of Eternity
- Dreamstone Hedron
- Titan's Presence
- Eldrazi Mimic
- Worn Powerstone
- Matter Reshaper
- Warden of Geometries
- Anticausal Vestige
- Flayer of Loyalties
- Endless One
- Thought-Knot Seer
- Kozilek's Command
Most included 50
Highest share of decks running them, distinctive or not.
- Sol Ring
- All Is Dust
- Forsaken Monument
- Eldrazi Temple
- Thran Dynamo
- Wastes
- Echoes of Eternity
- Urza's Tower
- Urza's Power Plant
- Urza's Mine
- It That Heralds the End
- Ugin, the Ineffable
- Glaring Fleshraker
- Shrine of the Forsaken Gods
- Palladium Myr
- Null Elemental Blast
- Ulamog, the Ceaseless Hunger
- Mind Stone
- Hedron Archive
- Not of This World
- Thought Vessel
- Conduit of Ruin
- Kozilek, the Great Distortion
- Temple of the False God
- Worn Powerstone
- Oblivion Sower
- It That Betrays
- Artisan of Kozilek
- Eye of Ugin
- Everflowing Chalice
- Warping Wail
- Rogue's Passage
- Geode Golem
- Lightning Greaves
- Reliquary Tower
- Mystic Forge
- Urza's Incubator
- Breaker of Creation
- Endbringer
- War Room
- Titan's Presence
- Darksteel Monolith
- Ulamog, the Infinite Gyre
- Kozilek, Butcher of Truth
- Kozilek's Command
- Urza's Cave
- Dreamstone Hedron
- Basalt Monolith
- Rise of the Eldrazi
- Eldritch Immunity
Format legality
Rulings
- 2024-06-07
Annihilator abilities trigger and resolve during the declare attackers step. The defending player sacrifices the required number of permanents of their choice before they declare blockers. Any creatures sacrificed this way won't be able to block.
- 2024-06-07
If Ulamog is entering the battlefield directly from exile, it will see itself when determining which card has the greatest mana value among cards in exile. If that's Ulamog, which seems likely, it will enter with ten +1/+1 counters on it.
- 2024-06-07
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.
- 2024-06-07
Ulamog, the Defiler has received a minor update to clarify that the target of the first ability exiles the top half of their library. Its updated Oracle text appears above.
- 2024-06-07
Ulamog, the Defiler's first ability will resolve before Ulamog does. If Ulamog is countered or otherwise leaves the stack in response to its triggered ability, the triggered ability will still resolve as normal.
- 2024-06-07
Use the number of +1/+1 counters on Ulamog at the time its annihilator ability resolves to determine how many permanents defending player should sacrifice.