Cheapest priced copy (Darksteel): $0.35 at Card Kingdom, near mint, their price list as of .
Magnetic Flux 
Instant · Common · Darksteel · #25
Artifact creatures you control gain flying until end of turn.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Darksteel | 25 | Common | $0.35 | $0.49 |