Cheapest priced copy (Strixhaven: School of Mages): $0.35 at Card Kingdom, near mint, their price list as of .
Stonebound Mentor 
Creature — Spirit Advisor · 3/3 · Common · Strixhaven: School of Mages · #239
Whenever one or more cards leave your graveyard, scry 1.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Strixhaven: School of Mages | 239 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 16 April 2021If multiple cards leave your graveyard as part of the same event, Stonebound Mentor’s ability will trigger only once.