Professor Onyx
Strixhaven: School of Mages · #276

Professor Onyx

Professor Onyx is a Mythic Legendary Planeswalker — Liliana from Strixhaven: School of Mages (276) in Magic: The Gathering. Mana cost {4}{B}{B}. Color identity: B. Cactaur's latest catalog snapshot shows a market reference near $32.52 for ungraded copies.

Strixhaven: School of Mages set collectorsHigh-end singles buyersFinish-sensitive collectors [object Object][object Object][object Object][object Object][object Object][object Object]
TCGPlayer market $32.52
Cardmarket trend €7.66
Rarity Mythic
App coming soon

Who is this card for?

Professor Onyx suits collectors and players working on Strixhaven: School of Mages who need the Mythic slot. Treat $32.52 as a starting reference only — verify finish, border treatment, and condition before paying premium singles prices.

What is Professor Onyx from Strixhaven: School of Mages?

Professor Onyx is a Legendary Planeswalker — Liliana in Strixhaven: School of Mages numbered 276. Mana cost {4}{B}{B}. Color identity: B. Professor Onyx (276) is a chase-tier Mythic Legendary Planeswalker — Liliana in Strixhaven: School of Mages. Finish, border treatment, and grade drive most of the premium beyond raw near-mint quotes.

What is Professor Onyx worth today?

Cactaur tracks a market reference near $32.52 for Professor Onyx. Low and high spread runs $32.52 to null. Per-finish references: cardmarket: $7.66; foil: $32.52; Normal: $13.21. This printing is from Strixhaven: School of Mages. Collector number 276 distinguishes this printing from same-name cards in other sets.

SetStrixhaven: School of Mages
Number276
RarityMythic
TCGPlayer USD$32.52
Cardmarket EUR€7.66
cardmarket $7.66
foil $32.52
Normal $13.21

Card stats

ColorsB

How collectible is Professor Onyx?

Professor Onyx is a Mythic printing in Strixhaven: School of Mages. Chase-tier slots combine scarcity, art, and format demand — prices move with reprint news and tournament results. This printing is from Strixhaven: School of Mages. Collector number 276 distinguishes this printing from same-name cards in other sets.

What are the key details for Professor Onyx?

Professor Onyx lists as Legendary Planeswalker — Liliana with keywords Magecraft. Artist: Kieran Yanner. Rules text is indexed in the catalog for search and deck research. This printing is from Strixhaven: School of Mages. Collector number 276 distinguishes this printing from same-name cards in other sets.

Cactaur's take

Professor Onyx (276) is a chase-tier Mythic Legendary Planeswalker — Liliana in Strixhaven: School of Mages. Finish, border treatment, and grade drive most of the premium beyond raw near-mint quotes.

Pros

  • Professor Onyx is catalogued as Mythic Legendary Planeswalker — Liliana in Strixhaven: School of Mages, making set and collector number verification straightforward.
  • Public market data shows a reference near $32.52 across finishes (cardmarket: $7.66; foil: $32.52; Normal: $13.21).
  • Mana cost {4}{B}{B} and type line Legendary Planeswalker — Liliana help deck builders confirm the correct printing quickly.

Cons

  • Raw market prices vary by condition and finish — near-mint estimates are not slab grades.

Verdict: Use $32.52 as a benchmark, then adjust for finish, grade, and how quickly you need to buy or sell.

FAQ

What is Professor Onyx from Strixhaven: School of Mages?

Professor Onyx is a Mythic Legendary Planeswalker — Liliana from Strixhaven: School of Mages numbered 276 in Magic: The Gathering. Cactaur indexes set, rarity, mana cost, and market references for this printing.

How much is Professor Onyx worth?

Cactaur's catalog snapshot shows a market reference near $32.52 for ungraded Professor Onyx. Condition, finish, and recent sold comps can move realized prices above or below that benchmark.

What rarity is Professor Onyx?

Professor Onyx is catalogued as Mythic in Strixhaven: School of Mages. Use the collector number and set symbol on listings to confirm you are buying this exact printing.

Is Professor Onyx legal in Commander or Standard?

Professor Onyx shows format legality in historic, timeless, gladiator, pioneer based on our latest ingest. Always verify the exact printing and ban-list updates before registering a deck for an event.

Why does Professor Onyx trade at a premium?

Professor Onyx combines Mythic scarcity with art, finish, and format demand. Chase slots often move on reprint rumors, tournament results, and condition-sensitive buyer interest. This printing is from Strixhaven: School of Mages.

Related cards

Trust & data sources. Cactaur displays catalog and market data from pokemontcg.io embedded TCGPlayer/Cardmarket references. Prices change frequently and are not guarantees.

Cactaur does not authenticate cards or guarantee values. Scan your copy in the iPhone app for condition-aware guidance.

Catalog snapshot: 2026-06-23. Last updated: 2026-06-23.