Professor Onyx #153 – Commander: Duskmourn: House of Horror (Mythic)

Magic: The Gathering · Commander: Duskmourn: House of Horror · Mythic

Professor Onyx #153 Price

Professor Onyx (#153, Mythic) from Commander: Duskmourn: House of Horror is worth $5.09 in Near Mint condition on TCGplayer as of October 3, 2026. On Cardmarket, Europe's main marketplace, the Normal sells for €4.89.

Near Mint · TCGplayer: $5.09
Near Mint · Cardmarket: €4.89
30-day change: −3.2%
Printings: 1

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Professor Onyx prices by printing

Near Mint market prices, updated October 4, 2026.

Printing	TCGplayer (USD)	Cardmarket (EUR)
Normal	$5.09	€4.89

TCGplayer market price and Cardmarket price for Near Mint English copies. They are two separate markets, so the euro figure is Cardmarket's own price, not a conversion of the dollar one. Source: TCGplayer, Cardmarket.

Card details

Set: Commander: Duskmourn: House of Horror
Card number: 153
Rarity: Mythic
Released: September 27, 2024
Illustrator: Kieran Yanner
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.

Professor Onyx: common questions

How much is Professor Onyx #153 worth?

Professor Onyx (#153, Mythic) from Commander: Duskmourn: House of Horror is worth $5.09 in Near Mint condition on TCGplayer as of October 3, 2026. On Cardmarket, Europe's main marketplace, the Normal sells for €4.89.

What set is Professor Onyx from?

Professor Onyx is card 153 in Commander: Duskmourn: House of Horror, released September 27, 2024. Its rarity is Mythic. Illustrated by Kieran Yanner.

Is Professor Onyx going up in price?

Over the last 30 days the Near Mint Normal price on TCGplayer moved from $5.26 (September 5, 2026) to $5.09 (October 3, 2026), a change of −3.2%. The 30-day low was $5.05 and the high $5.31.

How do I check what my Professor Onyx is worth?

Scan it with the TCG Vault app on iPhone: it identifies the card from the camera in seconds and shows its current market price and price history, then keeps it in your collection so you can follow its value.