Professor Onyx
Legendary Planeswalker — Liliana · Mythic
Professor Onyx is currently worth about $5.43 for its most affordable printing, tracked daily across Scryfall, TCGplayer, and Card Kingdom.
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.
Format legality
Card facts
- Mana value
- 6
- Color identity
- B
- Type line
- Legendary Planeswalker — Liliana
- Keywords
- Magecraft
- Rarity
- Mythic
- First printed
- 2021
- Artist
- Kieran Yanner
- Loyalty
- 5
Playability
#2371 most-played card on EDHREC — Commonly played
Popularity data from EDHREC
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Prices by printing
Latest tracked estimates. Updated daily.
| Set | No. | Rarity | Nonfoil | Foil |
|---|---|---|---|---|
| Strixhaven: School of Mages Promos | 83s | Mythic | — | $17.43 |
| Strixhaven: School of Mages | 276 | Mythic | $12.21 | $35.50 |
| Strixhaven: School of Mages | 83 | Mythic | $7.06 | $6.69 |
| Duskmourn: House of Horror Commander | 153 | Mythic | $5.96 | — |
| Strixhaven: School of Mages Promos | 83p | Mythic | $5.43 | $6.32 |
| Magic Online Promos | 90088 | Mythic | — | — |
Price intelligence
Strixhaven: School of Mages Promos #83s — every source we track. The spread between retailers is where the deals live.
All sources
| Source | foil | As of |
|---|---|---|
| Scryfall estimate | $17.43 | 2026-07-28 |
Price trend · 90 days
foil
$17.43 – $17.43 · Scryfall estimate
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Frequently asked
How much is Professor Onyx worth?
Professor Onyx is currently worth about $5.43 for its most affordable printing, based on live market estimates tracked daily on RareWell. Copies range from $5.43 to $35.50 across printings and finishes.
Which sets was Professor Onyx printed in?
Professor Onyx has been printed in 4 sets, including Strixhaven: School of Mages, Magic Online Promos, Strixhaven: School of Mages Promos, Duskmourn: House of Horror Commander.
Can I buy Professor Onyx on RareWell?
No copies of Professor Onyx are listed right now, but collectors list cards daily — and if you own one, you can list it for sale or trade in minutes, free.
Is Professor Onyx legal in Commander?
Yes — Professor Onyx is legal in Commander (EDH).
Is Professor Onyx legal in Modern?
Yes — Professor Onyx is legal in Modern.
Is Professor Onyx on the Reserved List?
No — Professor Onyx is not on the Reserved List.
Printed in: Strixhaven: School of Mages · Magic Online Promos · Strixhaven: School of Mages Promos · Duskmourn: House of Horror Commander
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