How much is Professor Onyx worth?

The current Near Mint price for Professor Onyx from Strixhaven: School of Mages Promos (Magic: The Gathering) is $18.35. The price has been stable over the past 7 days.

What set is Professor Onyx from?

Professor Onyx is from the Strixhaven: School of Mages Promos set, released April 2021. It is a mythic in Magic: The Gathering.

What rarity is Professor Onyx?

Professor Onyx is a mythic card from Strixhaven: School of Mages Promos in Magic: The Gathering.

How has the price of Professor Onyx changed over the past 30 days?

Over the past 30 days, the Near Mint price of Professor Onyx has risen 0.6% ($0.11) to $18.35.

How many printings of Professor Onyx exist?

Professor Onyx has 5 printings across different Magic: The Gathering sets. The cheapest printing is $5.14 from Strixhaven: School of Mages Promos.

Magic: The Gathering · mythicLive pricing

Professor Onyx

Name: Professor Onyx
Brand: Magic: The Gathering
SKU: 5698176c-571d-4952-85d6-fbd1b15f2aaa
Price: 18.35 USD
Availability: InStock

Stable0.0%

Strixhaven: School of Mages Promos, 2021 · #83s

Professor Onyx's Near Mint price is up 0.6% ($0.11) over the past 30 days.

7h ago· Updated Nov 2, 2026

Card Details

TypeLegendary Planeswalker — Liliana

Mana Cost4BB

P/TLoyalty: 5

ArtistKieran Yanner

Card TextMagecraft — 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.

Format Legality

ModernPioneerCommanderLegacyVintageHistoricBrawl

inkwell Fair Value™?· NM

$18.35

moderate

$17.85

$22.99

Condition?

5 printings — select edition