Legal in Modern, Legacy, Vintage, Commander.
About This Card
Professor Onyx is a mythic legendary planeswalker from Duskmourn: House of Horror Commander. Currently $6.72.
Released September 2024 as part of Duskmourn: House of Horror Commander (Commander product). Click through to Duskmourn: House of Horror Commander for the full set's price index, top movers, and sealed-product EV.
Legal in Modern, Pioneer, Legacy, Vintage, Commander — cross-format demand provides multiple price support levels.
Frequently Asked Questions
Is Professor Onyx a good MTG investment?
Professor Onyx is a mythic from Duskmourn: House of Horror Commander currently at $6.72. Legal in Modern, Pioneer, Legacy, Vintage, Commander. Check the SpellBook Score and reprint risk analysis on this page for a complete investment picture.
What is the price of Professor Onyx?
Professor Onyx from Duskmourn: House of Horror Commander is currently $6.72 for nonfoil. SpellBook Finance tracks daily prices from TCGPlayer, Card Kingdom, eBay, and EU marketplaces — compare all sources on this page.
What is Professor Onyx's mana cost?
Professor Onyx's mana cost (casting cost) is 4BB ({4}{B}{B}). See Professor Onyx's full card text, color identity, format legality, and live prices on this page.
Should I buy Professor Onyx?
At $6.72, Professor Onyx is a mythic with Legal in Modern, Pioneer, Legacy, Vintage, Commander.. Review the price history chart, supply signals, and reprint risk analysis on this page to make an informed decision.
Which buylist pays the most for Professor Onyx?
SpellBook compares Card Kingdom, CoolStuffInc, Star City Games, ABU Games, TCGPlayer, Manapool, and eBay. The Where to Sell section of this page surfaces today's highest net payout after fees and shipping, along with store credit bonuses when you want to trade up.
Is Professor Onyx good in Commander (EDH)?
Professor Onyx is ranked #2361 on EDHREC, making it a commonly played Commander card. Legal in Modern, Pioneer, Legacy, Vintage, Commander. See its price history and reprint risk on this page.
What formats is Professor Onyx legal in?
Professor Onyx is tournament-legal in Modern, Pioneer, Legacy, Vintage, Commander. Full format legality, price history, and reprint risk are on this page.
Other printings of Professor Onyx
Is Professor Onyx going up or down?
At $6.72, daily moves for Professor Onyx are tracked across TCGPlayer market, Card Kingdom, and eBay completed sales. Scroll up for the multi-source chart on this mythic legendary planeswalker; direction matters more than yesterday's spot.
Is Professor Onyx worth buying?
Professor Onyx is currently priced at $6.72. Use the chart, recent sale comps, and SpellBook Score on this page to judge whether today's ask is a reasonable entry; fees and shipping can shift real cost 10 to 15%.
Professor Onyx reprint risk
Professor Onyx can be reprinted in any future Standard, Modern, Commander, or Masters product. Watch for upcoming set spoilers and EDH precon announcements; the SpellBook reprint risk score on this page weighs print history, set type, and competitive demand to flag the cards most exposed.
Professor Onyx price history
SpellBook has tracked Professor Onyx since its 2024 release in Duskmourn: House of Horror Commander across TCGPlayer, Card Kingdom, eBay completed sales, Cardmarket, and 13 other sources. It currently sits at #2361 on EDHREC, which shapes its long-run demand. The full multi-year chart and recent sale comps live above this section.