Cheapest priced copy (Darksteel): $0.35 at Card Kingdom, near mint, their price list as of .
Drill-Skimmer 
Artifact Creature — Thopter · 2/1 · Common · Darksteel · #118
Flying
This creature has shroud as long as you control another artifact creature. (It can't be the target of spells or abilities.)
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Darksteel | 118 | Common | $0.35 | $0.49 |