Cheapest priced copy (Amonkhet): $0.35 at Card Kingdom, near mint, their price list as of .
Magma Spray 
Instant · Common · Shards of Alara · #108
Magma Spray deals 2 damage to target creature. If that creature would die this turn, exile it instead.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
6 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Amonkhet | 141 | Common | $0.35 | $0.49 |
| Shards of Alara | 108 | Common | $0.35 | $0.49 |
| Duel Decks: Izzet vs. Golgari | 15 | Common | $0.35 | — |
| Friday Night Magic 2014 | 7 | Rare | — | $0.49 |
| Journey into Nyx | 103 | Common | $0.35 | $0.49 |
| The List | AKH-141 | Common | $0.35 | — |
One ruling from Wizards of the Coast
- 18 April 2017Magma Spray's replacement effect will exile the target creature if it would die this turn for any reason, not just due to lethal damage. It applies to the target creature even if Magma Spray deals no damage to it (due to a prevention effect) or Magma Spray deals damage to a different creature (due to a redirection effect).