Cheapest priced copy (Jumpstart 2022): $0.35 at Card Kingdom, near mint, their price list as of .
Combat Professor 
Creature — Bird Cleric · 2/3 · Common · Jumpstart 2022 · #167
Flying
At the beginning of combat on your turn, target creature you control gets +1/+0 and gains vigilance until end of turn.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Jumpstart 2022 | 167 | Common | $0.35 | — |
| Strixhaven: School of Mages | 11 | Common | $0.35 | $0.49 |