Professor Onyx is a Mythic Rare legendary Planeswalker from the 2021 Strixhaven: School of Mages Promos set, featuring the Magecraft mechanic and abilities centered on life manipulation.
2021 • Magic: The Gathering • Strixhaven: School of Mages Promos
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$5.43
Professor Onyx, designated as card 83p, stands as a formidable presence within the Magic: The Gathering trading card game. The card is illustrated by Kieran Yanner, whose artwork complements the character’s academic yet sinister demeanor. As a Legendary Planeswalker of the Liliana type, Professor Onyx commands a mana cost of four generic mana and two black mana, resulting in a mana value of six. Her abilities allow players to control the board state through life total manipulation. The Magecraft trigger causes each opponent to lose 2 life and the controller to gain 2 life whenever an instant or sorcery spell is cast or copied, providing consistent value throughout the game. The Planeswalker’s loyalty abilities offer further tactical depth. A +1 ability allows the player to look at the top three cards of their library, adding one to their hand while discarding the rest to the graveyard. The -3 ability forces each opponent to sacrifice a creature with the highest power among their controlled creatures, serving as a potent removal tool. The ultimate ability, costing eight loyalty, challenges opponents to discard a card or suffer 3 life damage, repeating this process six times for devastating board wipes. Collectors value this card for its intricate design and powerful gameplay mechanics. Its mythic rarity and distinct abilities make it a sought-after addition for enthusiasts of the Magic: The Gathering universe. The card’s identity as a Liliana Planeswalker connects it to a broader narrative within the game, appealing to lore-focused collectors as well. Whether building a competitive deck or expanding a curated collection, Professor Onyx offers a blend of strategic complexity and aesthetic appeal. Its presence in the Strixhaven: School of Mages Promos set highlights the creative direction of Magic: The Gathering during this era, making it a significant piece for any serious collector.
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The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
The core identity of the card within the set.
The subject, team, league, and sport context tied to this card.
Featured
Professor Onyx
Game
Magic: The Gathering
Rarity, print treatment, and game-specific stats for this card.
Mythic Rare
Kieran Yanner
Card Stock
English
{4}{B}{B}
Legendary Planeswalker — Liliana
5
B
Abilities, attacks, oracle text, and flavor text printed on the card.
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.
