Cheapest priced copy (Zendikar Rising): $0.35 at Card Kingdom, near mint, their price list as of .
Resolute Strike 
Instant · Common · Zendikar Rising · #35
Target creature gets +2/+2 until end of turn. If it's a Warrior, you may attach an Equipment you control to it.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Zendikar Rising | 35 | Common | $0.35 | $0.49 |