Ulamog, the Defiler appears in 12 competitive decklists in our database. Modern accounts for 91.7% of lists. Coverage spans June 2024 to May 2026.
Competitive format breakdown
Format
Decks
Share
11
91.7%
Other ingested formats (not in the competitive breakdown): 8.3%
Often played with
Recent events
Arena Championship 12 — 1 deck (5/23/2026)
Pro Tour Edge of Eternities — 3 decks (9/26/2025)
Ultimate Guard European Magic Series: Prague January 2025 — 1 deck (1/27/2025)
Pro Tour Modern Horizons 3 — 7 decks (6/28/2024)
Frequently asked questions
How many competitive decks play Ulamog, the Defiler?
Our database currently tracks 12 competitive decklists that include this card.
What formats use Ulamog, the Defiler most?
Modern is the most common format (91.7% of tracked lists).
What cards pair with Ulamog, the Defiler?
Top co-played cards include The Stone Brain (50%) and Ancient Stirrings (50%).
When was Ulamog, the Defiler last seen in the data?
The most recent ingested list was at Arena Championship 12 (May 23, 2026).
What time range does this data cover?
Tracked lists span June 2024 through May 2026.
Is Ulamog, the Defiler played in Modern?
Yes — 11 competitive Modern lists include Ulamog, the Defiler (91.7% of tracked lists).
About competitive deck data
Lists are sourced from competitive Magic: The Gathering events ingested from magic.gg and related feeds. Card names, oracle text, and images are provided via Scryfall. Synergy rates show how often another card appears in the same decklist. Data is updated as new events are imported.
Data updated through May 2026 · Last decklist seen: Arena Championship 12, May 23, 2026
