Cheapest priced copy (Commander Legends: Battle for Baldur's Gate): $5.49 at Card Kingdom, near mint, their price list as of .
Breath Weapon 
Instant · Common · Foundations Commander · #142
Breath Weapon deals 2 damage to each non-Dragon creature.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
3 printings · $5.49 to $11.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends: Battle for Baldur's Gate | 165 | Common | $5.49 | $11.99 |
| Foundations Commander | 142 | Common | $5.49 | — |
| The List | CLB-165 | Common | — | — |