Cards List

Professor Onyx

Strixhaven (STX)

Find the best Pioneer decks for Professor Onyx, it's winrate, popularity and the MTG Arena formats where it is legal!

Professor Onyx
Professor Onyx

Magecraft — Whenever you cast or copy an instant or sorcery spell, each opponent loses 2 life and you gain 2 life.

: 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.

: Each opponent sacrifices a creature with the greatest power among creatures that player controls.

: Each opponent may discard a card. If they don't, they lose 3 life. Repeat this process six more times.

Planeswalker
M 0083 – STX
Standard
Pioneer
Alchemy
Historic
Timeless
Historic Brawl
  • For Professor Onyx's second loyalty ability, if an opponent has multiple creatures with the greatest power, that player choose which one to sacrifice. The next opponent in turn order chooses which creature they are sacrificing, then each other opponent in turn order does the same, knowing the choices made before them. Then all chosen creatures are sacrificed at the same time.
  • For Professor Onyx's last loyalty ability, "this process" is the following: First, the next opponent in turn order may choose a card in hand without revealing it, then each other opponent in turn order does the same. Then all the chosen cards are revealed and discarded at the same time and each opponent who didn't discard a card (whether they chose not to or had an empty hand) loses 3 life. This all will happen seven times, for a maximum loss of 21 life per opponent.
  • If Professor Onyx seems familiar, it's probably because you've seen this type of planeswalker before.
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