Cheapest priced copy (Battle for Zendikar): $0.35 at Card Kingdom, near mint, their price list as of .
Stonefury 
Instant · Common · Battle for Zendikar · #156
Stonefury deals damage to target creature equal to the number of lands you control.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Battle for Zendikar | 156 | Common | $0.35 | $0.49 |
| Commander Legends | 203 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 25 August 2015Count the number of lands you control as Stonefury resolves to determine how much damage is dealt.