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Professor Onyx — Duskmourn: House of Horror Commander Magic: The Gathering card

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Duskmourn: House of Horror Commander

Professor Onyx

4BB

Legendary Planeswalker — Liliana

#153 All printings

Mythic Black Loyalty 5

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.

Market estimate · ~24h

$5.54

Nonfoil $5.54 Cardmarket €5.86

TCGplayer & Cardmarket market price

Card data via Scryfall. Paper market figures use TCGplayer market price and Cardmarket values that Scryfall syncs from affiliates. View on Scryfall · How Scryfall prices work . Prices refresh about every 24 hours — useful estimates, not a live storefront and not an in-stock offer. Tappr is not the seller. Page checked 2026-11-02 21:24 UTC.

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