Cheapest priced copy (Foundations Commander): $6.49 at Card Kingdom, near mint, out of stock, their price list as of .
Tamiyo's Safekeeping 
Instant · Common · Kamigawa: Neon Dynasty · #211
Target permanent you control gains hexproof and indestructible until end of turn. You gain 2 life. (A permanent with hexproof and indestructible can't be the target of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy it.)
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
4 printings · $6.49 to $54.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Foundations Commander | 233 | Common | $6.49Out of stock | — |
| Kamigawa: Neon Dynasty | 211 | Common | $7.49 | $8.99 |
| Secret Lair Drop | 2320 | Rare | $29.99 | $32.99 |
| Secret Lair Drop | 2335 | Rare | — | $54.99 |