The Professor Onyx foil promo card from Magic: The Gathering's 2021 Strixhaven set, featuring the legendary planeswalker Liliana in her mythic rare foil treatment.
Professor Onyx
2021 • Magic: The Gathering • Strixhaven: School of Mages Promos
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Description
Released in 2021 as part of the Strixhaven: School of Mages Promos set, this Professor Onyx card is a notable entry for Magic: The Gathering collectors. Identified by card number 83s and the PSTX set code, the card features the legendary planeswalker Liliana in a distinctive foil finish. Collectors often seek out this promo card to complete their Strixhaven collections or to add a powerful, visually striking planeswalker to their library. The foil treatment enhances the card's aesthetic appeal, making it a desirable item for both competitive players and casual enthusiasts. Its status as a promo card from the Strixhaven era adds to its historical value within the Magic: The Gathering universe. Whether you are looking to expand your collection of Liliana cards or acquire a high-rarity foil from this beloved set, this Professor Onyx card represents a significant piece of TCG history.
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Card Details
The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
Catalog Profile
The core identity of the card within the set.
Featured Subject
The subject, team, league, and sport context tied to this card.
Featured
Professor Onyx
Game
Magic: The Gathering
TCG Attributes
Rarity, print treatment, and game-specific stats for this card.
Mythic Rare
Kieran Yanner
Card Stock
English
Foil
{4}{B}{B}
Legendary Planeswalker — Liliana
5
B
Card Text
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.