Professor Onyx is a Magic: The Gathering trading card game card from the Strixhaven: School of Mages Promos set (code PSTX). It is a Mythic Rare promo card with card number 83p. The card is a Legendary Planeswalker — Liliana with a mana cost of {4}{B}{B}, a mana value of 6, and colors B. It has a loyalty of 5 and a normal layout. The artist is Kieran Yanner.
2021 • Magic: The Gathering • Strixhaven: School of Mages Promos
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| Condition | Value | Source | Trend | Price Details |
|---|---|---|---|---|
$4.80 | Guide Estimate | -13.4% | ||
Raw / Ungraded
TCGplayer Market (reference) · Guide Estimate evidence · captured Oct 11, 2026
Professor Onyx is a Magic: The Gathering trading card game card from the Strixhaven: School of Mages Promos set (code PSTX). It is a Mythic Rare promo card with card number 83p. The card is a Legendary Planeswalker — Liliana with a mana cost of {4}{B}{B}, a mana value of 6, and colors B. It has a loyalty of 5 and a normal layout. The artist is Kieran Yanner.
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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.
Notable collectible traits associated with this card profile.
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