Cheapest priced copy (War of the Spark): $0.35 at Card Kingdom, near mint, their price list as of .
Nahiri's Stoneblades 
Instant · Common · War of the Spark · #139
Up to two target creatures each get +2/+0 until end of turn.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| War of the Spark | 139 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 3 May 2019You can’t target the same creature twice to have it get +4/+0.