Cheapest priced copy (Outlaws of Thunder Junction): $0.35 at Card Kingdom, near mint, their price list as of .
Sterling Keykeeper 
Creature — Human Mercenary · 2/2 · Common · Outlaws of Thunder Junction · #32
{2}, {T}: Tap target non-Mount creature.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Outlaws of Thunder Junction | 32 | Common | $0.35 | $0.49 |