Cheapest priced copy (Hour of Devastation): $0.35 at Card Kingdom, near mint, their price list as of .
Open Fire 
Instant · Common · Hour of Devastation · #105
Open Fire deals 3 damage to any target.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Hour of Devastation | 105 | Common | $0.35 | $0.49 |
| Foundations Jumpstart | 583 | Common | $0.35 | — |