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  6. Professor's Warning

Magic · Strixhaven: School of Mages · #84 · Common

Professor's Warning

Magic card price for Professor's Warning: $0.30 market, from $0.02 at the cheapest listing, Normal printing, updated Oct 18, 2026. Full price history since Feb 8, 2024 below.

Market price · Normal · Oct 18, 2026
$0.30
+7.1% this week · −9.1% in 30 days
Buy on eBay →
1 day+3.5%
7 days+7.1%
30 days−9.1%
90 days−3.2%
1 year+275.0%
All time+400.0%

Sellers right now

$0.02lowest listing$19.95highest
Market price$0.30
Mid listing$0.30
Direct$0.10
30-day avg$0.32

Market price is what a near-mint copy actually sold for. The cheapest listing is what a seller asks today — on thin markets the two differ a lot.

Where to buy

TCGplayer$0.30
Cardmarket$0.20 €0.18

EUR converted at 1.1253 (ECB reference rate). Shipping and condition not included.

One year

$0.0752-week low$0.3652-week high
In the range79%
All-time low$0.04
All-time high$0.36
First priceFeb 8, 2024
Normal · market priceCardmarket (EU, in USD)
$0.05$0.16$0.28$0.39
$0.30
Jul 20Aug 19Sep 18Oct 18
TCGplayer · via tcgcsv · Cardmarket · via MTGJSONtcgrate.com

Price story

Our price record for Professor's Warning (Normal) begins in February 2024 at $0.06; the market price today is $0.30, up 400% since then. In the last year the price changed +275% and ranged from $0.07 to $0.36, and it now trades in the middle of that range. The highest price we have recorded is $0.36, 20.0% above today. Listings currently start at $0.02; over the last 30 days the market price averaged $0.32.

Printings

PrintingMarketLowHigh7d
Normal$0.30$0.02$19.95+7.1%
Foil$0.28$0.09$4.99+3.7%

The card in play

Rules text

Choose one —

• Put a +1/+1 counter on target creature.

• Target creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Flavor

Professor Onyx urged the twins to prepare for the dark mage Extus, sounding very much like someone familar with the rise of tyrants.

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