Cheapest priced copy (Mirrodin Besieged): $0.35 at Card Kingdom, near mint, their price list as of .
Gust-Skimmer 
Artifact Creature — Insect · 2/1 · Common · Modern Masters 2015 · #217
{U}: This creature gains flying until end of turn.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Mirrodin Besieged | 108 | Common | $0.35 | $0.49 |
| Modern Masters 2015 | 217 | Common | $0.35 | $0.49 |