Professor Onyx
Magic: The Gathering | Commander: Duskmourn: House of Horror - Singles
United States marketplace listings with USD buyer pricing, shippable seller stock, and 14-day buyer protection.
| Rarity | M |
| Number | 153 |
| Printed in | Magic: The Gathering | Commander: Duskmourn: House of Horror |
| Other Versions | |
| Available | 7 items |
| From | $6.21 |
| Type | Legendary Planeswalker — Liliana |
| Seller | Condition | Card price | Stock | Action |
|---|---|---|---|---|
NM | $8.25 | 6 | ||
NM | $6.21 | 1 | Unavailable |
About Professor Onyx
Professor Onyx from Commander: Duskmourn: House of Horror is currently available from around $4.88. This panel brings together mana value, rules text, format signals, and set details in one place.
Mana Cost
Mana Value 6Color Identity
BlackStarting Loyalty
Card 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.
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Card Facts
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Frequently Asked Questions
How much is Professor Onyx worth?
Professor Onyx is currently shown on Card Synced from about $4.88 for Commander: Duskmourn: House of Horror. This is a live floor on active listings. For MTG singles, foil status and rarity generally have the biggest impact on spread.
Professor Onyx currently shows mostly this printing in this view, which can help when comparing direct availability and condition.
Is Professor Onyx legal in Commander?
Professor Onyx is legal in Commander. It is also legal in Modern, legal in Pioneer.
Is Professor Onyx legal in Modern, Pioneer, or Vintage?
This card can differ across formats. Card Synced shows a live legality snapshot from Oracle and updates it as rulings change. Use the legality table above to confirm full format details before buying.
Is Professor Onyx on the Reserved List?
No. Professor Onyx is not on the Reserved List. That can affect long-term scarcity and collector demand.
What is Professor Onyx in-game text?
In game, Professor Onyx is a Legendary Planeswalker — Liliana with text that starts: "Magecraft — Whenever you cast or copy an instant or sorcery spell, each opponent loses 2 life and you gain 2 life.".
How popular is Professor Onyx in Commander decks?
Professor Onyx ranks #2,376 on EDHREC for Commander inclusion, which is a proxy for market demand and practical deck usage.
Buy Professor Onyx on Card Synced
Looking to buy Professor Onyx? Card Synced offers the best prices with 0% seller fees, meaning sellers keep more and can offer better prices. Every purchase includes buyer protection with a 14-day inspection period.
Professor Onyx ranks #2,376 on EDHREC, making it a popular choice for Commander players. Browse our selection to find the best deal.
Plus, your Card Synced wallet balance can be spent at verified partner card shops worldwide, bridging online and offline card trading.
Searchers looking for Professor Onyx legality or value usually care about the same things: current format status, available printings, and whether the card is seeing fresh demand from Commander, Modern, or Pioneer players. This page keeps those signals together.