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
- Zhulodok, Void Gorger
- Urza's Incubator
- Geode Golem
- 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
- Not of This World
- Bane of Bala Ged
- Emrakul, the World Anew
- Spawnbed Protector
- Kozilek, Butcher of Truth
- Pathrazer of Ulamog
- Sire of Seven Deaths
- Cavern of Souls
- Endbringer
- Kozilek, the Broken Reality
- Ugin's Labyrinth
- Gilded Lotus
- Crashing Drawbridge
- Calamity of the Titans
- Ulamog's Dreadsire
- Echoes of Eternity
- Desolation Twin
- Eldrazi Conscription
- Emrakul, the Promised End
- Ulamog's Crusher
- Titan's Presence
- Eldrazi Mimic
- Dreamstone Hedron
- Worn Powerstone
- Kozilek's Command
- Warden of Geometries
- Anticausal Vestige
- Matter Reshaper
- Glaring Fleshraker
- Thought-Knot Seer
- Flayer of Loyalties
Most included 50
Highest share of decks running them, distinctive or not.
- Sol Ring
- All Is Dust
- Forsaken Monument
- Eldrazi Temple
- Wastes
- Thran Dynamo
- Echoes of Eternity
- It That Heralds the End
- Urza's Tower
- Urza's Power Plant
- Urza's Mine
- Ugin, the Ineffable
- Shrine of the Forsaken Gods
- Glaring Fleshraker
- Palladium Myr
- Null Elemental Blast
- Mind Stone
- Ulamog, the Ceaseless Hunger
- Hedron Archive
- Not of This World
- Kozilek, the Great Distortion
- Thought Vessel
- Conduit of Ruin
- Temple of the False God
- Worn Powerstone
- Oblivion Sower
- It That Betrays
- Artisan of Kozilek
- Everflowing Chalice
- Eye of Ugin
- Warping Wail
- Rogue's Passage
- Lightning Greaves
- Geode Golem
- Urza's Incubator
- Reliquary Tower
- Mystic Forge
- Breaker of Creation
- War Room
- Titan's Presence
- Endbringer
- Darksteel Monolith
- Ulamog, the Infinite Gyre
- Kozilek's Command
- Kozilek, Butcher of Truth
- Urza's Cave
- Dreamstone Hedron
- Rise of the Eldrazi
- Basalt Monolith
- Void Winnower
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.