Cheapest priced copy (Secrets of Strixhaven): $0.35 at Card Kingdom, near mint, their price list as of .
Potioner's Trove 
Artifact · Common · Secrets of Strixhaven · #251
{T}: Add one mana of any color.
{T}: You gain 2 life. Activate only if you've cast an instant or sorcery spell this turn.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Secrets of Strixhaven | 251 | Common | $0.35 | $0.49 |