Cheapest priced copy (Oath of the Gatewatch): $0.35 at Card Kingdom, near mint, their price list as of .
Unnatural Endurance 
Instant · Common · Oath of the Gatewatch · #80
Devoid (This card has no color.)
Target creature gets +2/+0 until end of turn. Regenerate it.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Oath of the Gatewatch | 80 | Common | $0.35 | $0.49 |