Cheapest priced copy (Magic Origins): $0.35 at Card Kingdom, near mint, their price list as of .
War Horn 
Artifact · Uncommon · Magic Origins · #243
Attacking creatures you control get +1/+0.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Magic Origins | 243 | Uncommon | $0.35 | $0.49 |