Professor Onyx appears in 162 competitive decklists in our database. Standard accounts for 96.3% of lists. Coverage spans April 2021 to February 2025.
Competitive format breakdown
Format
Decks
Share
156
96.3%
Other ingested formats (not in the competitive breakdown): 3.7%
Often played with
Recent events
Innistrad Championship Standard Decklists A-C — 1 deck (12/3/2021)
Challenger Gauntlet Standard Decklists — 1 deck (8/6/2021)
July Strixhaven League Weekend – Rivals Standard Decklists — 1 deck (7/3/2021)
Strixhaven Championship Standard Decklists T-Z — 3 decks (6/4/2021)
Strixhaven Championship Standard Decklists P-S — 6 decks (6/4/2021)
Frequently asked questions
How many competitive decks play Professor Onyx?
Our database currently tracks 162 competitive decklists that include this card.
What formats use Professor Onyx most?
Standard is the most common format (96.3% of tracked lists).
What cards pair with Professor Onyx?
Top co-played cards include Duress (55%) and Heartless Act (46%).
When was Professor Onyx last seen in the data?
The most recent ingested list was at Innistrad Championship Standard Decklists A-C (Dec 3, 2021).
What time range does this data cover?
Tracked lists span April 2021 through February 2025.
Is Professor Onyx played in Standard?
Yes — 156 competitive Standard lists include Professor Onyx (96.3% 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 February 2025 · Last decklist seen: Innistrad Championship Standard Decklists A-C, Dec 3, 2021
