Pro Tour Phyrexia Pioneer Decklists A-E — 1 deck (2/17/2023)
2022 Magic Online Champions Showcase Season 3 Modern Decklists — 1 deck (1/21/2023)
Legacy European Championship: Sofia Pioneer Decklists — 1 deck (11/21/2022)
Frequently asked questions
How many competitive decks play Karn's Sylex?
Our database currently tracks 54 competitive decklists that include this card.
What formats use Karn's Sylex most?
Standard leads (92.6%), followed by Pioneer (5.6%).
What cards pair with Karn's Sylex?
Top co-played cards include Negate (33%) and The Stone Brain (26%).
When was Karn's Sylex last seen in the data?
The most recent ingested list was at MTG SEA Championship: Pioneer Decklists (2023 Round 3) (Jun 8, 2023).
What time range does this data cover?
Tracked lists span October 2022 through August 2025.
Is Karn's Sylex played in Standard?
Yes — 50 competitive Standard lists include Karn's Sylex (92.6% 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 August 2025 · Last decklist seen: MTG SEA Championship: Pioneer Decklists (2023 Round 3), Jun 8, 2023
