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.
No paper market price
Professor Onyx from Magic Online Promos is a digital-only printing (MTG Arena or Magic Online). This printing has no physical card, so TCGplayer and Cardmarket paper prices do not apply.
Card data via Scryfall. This printing is digital-only (MTG Arena or Magic Online), so TCGplayer and Cardmarket paper prices do not apply. View on Scryfall · How Scryfall prices work. Gameplay data is refreshed from Scryfall on demand. Tappr is not a marketplace and does not sell cards. Page checked 2026-09-15 18:36 UTC.
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