Should you sell Professor's Warning?
Not at the moment. CardKingdom is not buying Professor's Warning right now, so there is nothing to sell into until they reopen their buylist for it.
As of 16 Jul 2026, the buylist price is $0.08, though CardKingdom is not buying any copies at this price right now.
That works out to +0.0% over the last 7 days and +0.0% over the last 30 days.
The good sell price is $0.20, and it normally sits around $0.15.
The most CardKingdom has paid in the last 90 days is $0.20.
It last touched that best of $0.20 around 19 Apr 2026.
Prices come from CardKingdom. Updated 16 Jul 2026.
How we work out the good sell price for Professor's Warning
Every price on this page comes from CardKingdom’s buylist, which is what they pay to buy a card from you. We look at the last 90 days of that buylist for Professor's Warning and only count the times CardKingdom was actually buying it, because a price they are not buying at is not a price you could ever get.
We weight each price by how long it stayed in place. A price that held for three weeks tells you far more than one that lasted an hour, so the steady levels matter more than brief spikes.
From that history we work out three numbers for Professor's Warning:
- Normal ($0.15). The price the buylist sits at most of the time.
- Good ($0.20). A strong price that comes up often enough to be worth waiting for. It sits near the top of the realistic range with one off spikes stripped out, so it is a target you can expect to reach again rather than a fluke.
- Best ($0.20). The highest CardKingdom has paid for Professor's Warning while buying it in this period.
Because there is only a short history for Professor's Warning so far, we use the highest price seen as the good target until more data builds up.
We mark Professor's Warning as a sell once the current buylist reaches its good price, give or take a few percent, and as a hold below that.
What the numbers mean
- Current buylist. What CardKingdom pays for Professor's Warning right now.
- Wanted. How many copies CardKingdom is buying at that price. Zero means they have paused buying for the moment.
- Retail (NM). What CardKingdom charges to sell you a near mint copy. We show it for context, but our signals are about selling, so the buylist is what we focus on.
Buylist price history for Professor's Warning
Over the last 90 days the buylist ranged from $0.08 to $0.20.
| Date | Buylist | Wanted |
|---|---|---|
| 11 Jul 2026 | $0.08 | 0 |
| 11 Jul 2026 | $0.08 | 10 |
| 7 Jul 2026 | $0.08 | 0 |
| 7 Jul 2026 | $0.08 | 10 |
| 6 Jul 2026 | $0.10 | 10 |
| 6 Jul 2026 | $0.08 | 10 |
| 8 Jun 2026 | $0.08 | 0 |
| 18 May 2026 | $0.12 | 0 |
| 11 May 2026 | $0.15 | 0 |
| 7 May 2026 | $0.15 | 10 |
| 24 Apr 2026 | $0.15 | 0 |
| 23 Apr 2026 | $0.15 | 10 |
| 22 Apr 2026 | $0.20 | 10 |
| 21 Apr 2026 | $0.20 | 15 |
| 20 Apr 2026 | $0.20 | 17 |
| 20 Apr 2026 | $0.20 | 18 |
| 19 Apr 2026 | $0.20 | 21 |
| 18 Apr 2026 | $0.16 | 22 |
| 18 Apr 2026 | $0.16 | 19 |
| 18 Apr 2026 | $0.16 | 18 |
| 17 Apr 2026 | $0.16 | 15 |
| 17 Apr 2026 | $0.16 | 17 |
| 17 Apr 2026 | $0.16 | 16 |
| 16 Apr 2026 | $0.16 | 13 |
Each row is a buylist price change CardKingdom posted. Wanted is how many copies they were buying at that price.
About Professor's Warning
Professor's Warning is a C foil Magic: The Gathering card from Strixhaven: School of Mages (#084). The prices on this page come from CardKingdom's public buylist and retail feeds, last updated 16 Jul 2026.