Cheapest priced copy (Mirrodin): $0.35 at Card Kingdom, near mint, their price list as of .
Myr Adapter 
Artifact Creature — Myr · 1/1 · Common · Mirrodin · #210
This creature gets +1/+1 for each Equipment attached to it.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Mirrodin | 210 | Common | $0.35 | $0.49 |