Cheapest priced copy (Innistrad): $0.35 at Card Kingdom, near mint, their price list as of .
Vampiric Fury 
Instant · Common · Innistrad · #167
Vampire creatures you control get +2/+0 and gain first strike until end of turn. (They deal combat damage before creatures without first strike.)
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Innistrad | 167 | Common | $0.35 | $0.49 |
| Foundations Jumpstart | 610 | Common | $0.35 | — |
One ruling from Wizards of the Coast
- 22 September 2011Only Vampires you control when Vampiric Fury resolves will receive the bonus. Creatures that enter later in the turn, that you gain control of later in the turn, or that become Vampires later in the turn won't be affected.