Cheapest priced copy (Battle for Zendikar): $0.35 at Card Kingdom, near mint, their price list as of .
Rolling Thunder 
Sorcery · Uncommon · The List · #BFZ-154
Rolling Thunder deals X damage divided as you choose among any number of targets.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
6 printings · $0.35 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Battle for Zendikar | 154 | Uncommon | $0.35 | $0.79 |
| Battle Royale Box Set | 60 | Common | $0.49 | — |
| Game Night | 40 | Uncommon | $0.59Out of stock | — |
| Planechase | 64 | Common | $0.39 | — |
| The List | BFZ-154 | Uncommon | $0.35 | — |
| Tempest | 198 | Common | $0.39 | — |
4 rulings from Wizards of the Coast
- 4 October 2004If X is 0, you can’t choose any targets.
- 25 August 2015You choose how many targets Rolling Thunder has and how the damage is divided as you cast the spell. Each target must receive at least 1 damage.
- 25 August 2015If some, but not all, of the targets become illegal by the time Rolling Thunder tries to resolve, the original division of damage still applies, but no damage is dealt to illegal targets. If all the targets are illegal, the spell won’t resolve.
- 25 August 2015If Rolling Thunder is copied, the copy will retain the original damage divsion. The spell or ability will likely allow you to choose new targets, but you can’t change the way damage is divided.