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  5. Commander: Duskmourn: House of Horror
  6. Professor Onyx

Magic · Commander: Duskmourn: House of Horror · #153 · Mythic

Professor Onyx

Magic card price for Professor Onyx: $5.21 market, from $4.00 at the cheapest listing, Normal printing, updated Oct 19, 2026. Full price history since Sep 14, 2024 below.

Market price · Normal · Oct 19, 2026
$5.21
+3.6% this week · +0.8% in 30 days
Buy on eBay →
1 day0.0%
7 days+3.6%
30 days+0.8%
90 days−5.8%
1 year+240.5%
All time+1,202.5%

Sellers right now

$4.00lowest listing$49.73highest
Market price$5.21
Mid listing$5.53
30-day avg$5.07

Market price is what a near-mint copy actually sold for. The cheapest listing is what a seller asks today — on thin markets the two differ a lot.

Where to buy

TCGplayer$5.21
Cardmarket$6.26 €5.58

EUR converted at 1.1225 (ECB reference rate). Shipping and condition not included.

One year

$1.2852-week low$6.8252-week high
In the range71%
All-time low$0.40
All-time high$6.82
First priceSep 14, 2024
Normal · market priceCardmarket (EU, in USD)
$0.04$2.34$4.64$6.94
$5.21
Sep 2024May 2025Feb 2026Oct 2026
TCGplayer · via tcgcsv · Cardmarket · via MTGJSONtcgrate.com

Price story

Professor Onyx came out in September 2024; we leave the first weeks out of this story, because early prices are set before real supply exists. Over the past twelve months it moved +241%, trading between $1.28 and $6.82. The current price is in the middle of that range. Listings currently start at $4.00; over the last 30 days the market price averaged $5.07.

Printings

PrintingMarketLowHigh7d
Normal$5.21$4.00$49.73+3.6%

The card in play

Type line
Legendary Planeswalker — Liliana
Rules text

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.

Other printings of Professor Onyx

4 more · $5.21 – $36.10
All printings
Professor Onyx (Borderless) (276), Strixhaven: School of Mages — Magic card price −0.3% 7d Professor Onyx (Borderless) Strixhaven: School of Mages · #276 $36.10 Professor Onyx (83), Prerelease Cards — Magic card price +0.6% 7d Professor Onyx Prerelease Cards · #83 $17.85 Professor Onyx (83), Strixhaven: School of Mages — Magic card price +2.3% 7d Professor Onyx Strixhaven: School of Mages · #83 $7.49 Professor Onyx (83), Promo Pack: Strixhaven — Magic card price +0.8% 7d Professor Onyx Promo Pack: Strixhaven · #83 $6.45

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