Legal in Modern, Legacy, Vintage, Commander.
About This Card
Professor Onyx is a mythic legendary planeswalker from Magic Online Promos..
Released May 2021 as part of Magic Online Promos (promotional release). Click through to Magic Online Promos 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 Magic Online Promos currently at check the page for current pricing. 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 Magic Online Promos is currently priced on the page. 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 current pricing, 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.
Is Professor Onyx going up or down?
Professor Onyx has no settled non-foil price yet, so direction is the read that matters. The multi-source chart above pulls TCGPlayer market, Card Kingdom, and eBay completed sales for this mythic legendary planeswalker as soon as it trades.
Is Professor Onyx worth buying?
Professor Onyx has no settled non-foil market price on file yet. When it changes hands, compare 17 sources before buying; fees and condition can move 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 2021 release in Magic Online Promos 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.