Cheapest priced copy (Dragons of Tarkir): $0.35 at Card Kingdom, near mint, their price list as of .
Kindled Fury 
Instant · Common · Foundations · #542
Target creature gets +1/+0 and gains first strike until end of turn. (It deals combat damage before creatures without first strike.)
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
8 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dragons of Tarkir | 142 | Common | $0.35 | $0.49 |
| Foundations | 542 | Common | $0.35 | — |
| Hour of Devastation | 101 | Common | $0.35 | $0.49 |
| Foundations Jumpstart | 571 | Common | $0.35 | — |
| Magic 2010 | 144 | Common | $0.35 | $0.49 |
| Magic 2013 | 137 | Common | $0.35 | $0.49 |
| Morningtide | 92 | Common | $0.35 | $0.49 |
| Kamigawa: Neon Dynasty | 151 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 1 July 2012Giving a creature first strike after creatures with first strike deal combat damage doesn't prevent that creature from dealing combat damage.