Cheapest priced copy (Secrets of Strixhaven): $0.35 at Card Kingdom, near mint, their price list as of .
Stone Docent 
Creature — Spirit Chimera · 3/1 · Common · Secrets of Strixhaven · #36
{W}, Exile this card from your graveyard: You gain 2 life. Surveil 1. Activate only as a sorcery. (Look at the top card of your library. You may put it into your graveyard.)
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Secrets of Strixhaven | 36 | Common | $0.35 | $0.49 |