Cheapest priced copy (Double Masters): $0.35 at Card Kingdom, near mint, their price list as of .
Sanctum Spirit 
Creature — Spirit · 3/2 · Uncommon · Dominaria · #30
Lifelink
Discard a historic card: This creature gains indestructible until end of turn. (Artifacts, legendaries, and Sagas are historic.)
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Double Masters | 30 | Common | $0.35 | $0.49 |
| Dominaria | 30 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 27 April 2018A card, spell, or permanent is historic if it has the legendary supertype, the artifact card type, or the Saga subtype. Having two of those qualities doesn't make an object more historic than another or provide an additional bonus—an object either is historic or it isn't.