Cheapest priced copy (Eldritch Moon): $0.35 at Card Kingdom, near mint, their price list as of .
Spreading Flames 
Instant · Uncommon · Eldritch Moon · #143
Spreading Flames deals 6 damage divided as you choose among any number of target creatures.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Eldritch Moon | 143 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 13 July 2016You announce how the damage will be divided as part of casting Spreading Flames. Each chosen target must receive at least 1 damage.
- 13 July 2016If Spreading Flames has multiple targets, and some, but not all, are illegal targets when Spreading Flames tries to resolve, Spreading Flames will still deal damage to the remaining legal targets according to the original damage division. If all the targets are illegal, the spell won’t resolve.