Professor Onyx magic card front
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.

Rarity Mythic Rare
Reprints 5
Date Range 2023-11-16 - 2024-11-16

Professor Onyx from Commander: Duskmourn: House of Horror's Price Analysis

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5 Total Variations/Printings of Professor Onyx

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