Name: Professor Onyx
Brand: Magic: The Gathering
SKU: 99158
Price: 11.41 USD
Availability: InStock

Question 1

How much is Professor Onyx (Standard) worth?

Accepted Answer

As of October 2026, Professor Onyx (Standard) from Strixhaven: School of Mages has a market value of $11.40. Compare prices from verified sellers on CardNexus to find the best deal.

Question 2

Is Professor Onyx (Standard) going up or down in price?

Accepted Answer

Over the past 30 days, Professor Onyx (Standard) has decreased in value by 0.1%. The current market price is $11.40. Check the price history chart on CardNexus for the full trend.

Question 3

How much is Professor Onyx (Foil) worth?

Accepted Answer

As of October 2026, Professor Onyx (Foil) from Strixhaven: School of Mages has a market value of $36.20. Compare prices from verified sellers on CardNexus to find the best deal.

Question 4

Is Professor Onyx (Foil) going up or down in price?

Accepted Answer

Over the past 30 days, Professor Onyx (Foil) has increased in value by 0.0%. The current market price is $36.20. Check the price history chart on CardNexus for the full trend.

Question 5

What set is Professor Onyx from?

Accepted Answer

Professor Onyx is from the Strixhaven: School of Mages (STX) expansion, part of the Magic: The Gathering trading card game.

Question 6

What rarity is Professor Onyx?

Accepted Answer

Professor Onyx is a mythic Single card from the Strixhaven: School of Mages set.

Question 7

What type of card is Professor Onyx?

Accepted Answer

Professor Onyx is a b, planeswalker from the Strixhaven: School of Mages set in Magic: The Gathering.

Question 8

What finishes is Professor Onyx available in?

Accepted Answer

Professor Onyx is available in Standard and Foil. Each finish may have a different market value — compare prices for each version on CardNexus.

Question 9

What conditions is Professor Onyx available in?

Accepted Answer

Sellers on CardNexus list Professor Onyx in conditions ranging from Near Mint (NM) to Damaged. The most common conditions are Near Mint, Lightly Played (LP), and Moderately Played (MP). Each listing shows its exact condition so you can choose based on your preference and budget.

Question 10

How many listings are available for Professor Onyx?

Accepted Answer

There are currently 4 listings for Professor Onyx on CardNexus, with prices starting at $11.41. Browse all listings to compare conditions, finishes, and prices.

Question 11

Where can I buy Professor Onyx?

Accepted Answer

You can buy Professor Onyx from verified sellers on CardNexus, a marketplace for Magic: The Gathering singles and sealed products. Compare listings by condition and finish, view the price history chart, and choose from multiple sellers to find the best price for this Single card.

Professor Onyx

Market price history

Listings(3)

Market price history