Cheapest priced copy (Coldsnap): $0.35 at Card Kingdom, near mint, their price list as of .
Boreal Centaur 
Snow Creature — Centaur Warrior · 2/2 · Common · Coldsnap · #104
{S}: This creature gets +1/+1 until end of turn. Activate only once each turn. ({S} can be paid with one mana from a snow source.)
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Coldsnap | 104 | Common | $0.35 | $0.49 |