PSTX #83p
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Professor Onyx
Legendary Planeswalker · LilianaMagecraft
TCGplayer market · PSTX #83p nonfoil
$4.90 +1.0% +$0.05, 7 days
- 1-year range
- 30 days
- +3.2%
- EDHREC rank
- #2,417 Down 14 in 30 days
- Best buylist
Buy PSTX #83p nonfoil
TCGplayer, $4.90 (opens in a new tab) Card Kingdom, (opens in a new tab) Mana Pool, (opens in a new tab) eBay, Check price (opens in a new tab)
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Professor Onyx Price Summary
The benchmark price (cheapest playable nonfoil) is $4.90, up 1.0% over 7 days, up 3.2% over 30 days, down 28.1% over 90 days.
Professor Onyx Price History
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Reprints in this period
Professor Onyx price history chart, default range 3 months. currently $4.90.
Where to Buy and Sell Professor Onyx
Every market we track for PSTX #83p nonfoil on one line. The gray band is what you give up selling to a store instead of buying at market.
Professor Onyx in Sealed Products
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Professor Onyx Printings & Prices
Professor Onyx has 5 tracked printings across 3 sets, in nonfoil and foil finishes, including borderless, promo pack and prerelease treatments.
DSC #153
STX #83
STX #276
PSTX #83s
Sell Professor Onyx: Buylist Offers
| Buyer | Printing | Finish | Cash offer | Market | Spread to market |
|---|---|---|---|---|---|
| Card Kingdom | STX #276 | Foil | |||
| CoolStuffInc | STX #276 | Foil | |||
| Card Kingdom | PSTX #83s | Foil | |||
| Card Kingdom | STX #276 | Nonfoil | |||
| CoolStuffInc | STX #276 | Nonfoil | |||
| CoolStuffInc | STX #83 | Foil | |||
| Card Kingdom | DSC #153 | Nonfoil | |||
| Card Kingdom | PSTX #83p | Foil | |||
| Card Kingdom | STX #83 | Foil | |||
| Card Kingdom | PSTX #83p | Nonfoil |
Professor Onyx Rules Text & Legality
Professor Onyx
Magecraft — Whenever you cast or copy an instant or sorcery spell, each opponent loses 2 life and you gain 2 life.
+1: You lose 1 life. Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.
−3: Each opponent sacrifices a creature with the greatest power among creatures that player controls.
−8: Each opponent may discard a card. If they don't, they lose 3 life. Repeat this process six more times.
Professor Onyx is legal in Pioneer, Modern, Legacy and Commander, and not legal in Standard and Pauper.
- BrawlLegal
- CommanderLegal
- Competitive BrawlLegal
- Duel CommanderLegal
- GladiatorLegal
- HistoricLegal
- LegacyLegal
- ModernLegal
- OathbreakerLegal
- PioneerLegal
- TimelessLegal
- VintageLegal
- AlchemyNot legal
- Future StandardNot legal
- Old SchoolNot legal
- PauperNot legal
- Pauper CommanderNot legal
- Penny DreadfulNot legal
- PreDHNot legal
- PremodernNot legal
- StandardNot legal
- Standard BrawlNot legal
Professor Onyx Rulings
- Apr 16, 2021
Each magecraft ability has a different effect, although they all have the same trigger condition, whenever you cast or copy an instant or sorcery spell.
- Apr 16, 2021
For example, if you control Archmage Emeritus and cast an instant or sorcery spell, Archmage Emeritus's magecraft ability will trigger and you will draw a card.
- Apr 16, 2021
If an effect creates a copy of an instant or sorcery spell, this will also cause the magecraft ability to trigger.
- Apr 16, 2021
If an effect creates multiple copies of an instant or sorcery spell, magecraft abilities trigger once for each copy created by the effect.
- Apr 16, 2021
Some effects instruct you to copy an instant or sorcery card in a zone other than the stack. These copies do not cause magecraft abilities to trigger. However, most effects that do this also allow you to cast the copy, and casting the copy will cause magecraft abilities to trigger.
Reprints & Reprint Risk
Professor Onyx has been reprinted 8 times. The Duskmourn: House of Horror Commander reprint cut the price 67% in 30 days.
- Apr 23, 2021Strixhaven: School of MagesSTX #83
- Apr 23, 2021Strixhaven: School of Mages · foilSTX #83
- Apr 23, 2021Strixhaven: School of Mages Promos · Promo PackPSTX #83p
- Apr 23, 2021Strixhaven: School of Mages Promos · Promo Pack, foilPSTX #83p
- Apr 23, 2021Strixhaven: School of Mages · BorderlessSTX #276
- Apr 23, 2021Strixhaven: School of Mages · Borderless, foilSTX #276
- Apr 23, 2021Strixhaven: School of Mages Promos · Prerelease, foilPSTX #83s
- Sep 27, 2024Duskmourn: House of Horror CommanderDSC #153
Professor Onyx in Commander
Professor Onyx is the #2,417 most-played card on EDHREC, down 14 places over the last 30 days.
#2,417
EDHREC rank
across all Commander decks Down 14 in 30 days
across all Commander decks Down 14 in 30 days
Professor Onyx FAQ
How much is Professor Onyx worth?
Professor Onyx is worth about $4.90 for its cheapest playable printing as of Nov 8, 2026.
Is Professor Onyx legal in Commander?
Yes. Professor Onyx is legal in Commander. It is also legal in Pioneer, Modern and Legacy.
Has Professor Onyx been reprinted?
Yes. Professor Onyx has been reprinted 8 times, with 5 printings tracked on The Index.
Why is Professor Onyx cheap?
Professor Onyx trades at about $4.90; 8 reprints keep supply plentiful.
What can I play instead of Professor Onyx?
Cards that fill a similar role include Liliana, Dreadhorde General, Liliana Vess, Liliana, Death's Majesty.
