Cheapest priced copy (Darksteel): $1.29 at Card Kingdom, near mint, their price list as of .
Voltaic Construct 
Artifact Creature — Golem Construct · 2/2 · Uncommon · Darksteel · #156
{2}: Untap target artifact creature.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $1.29 to $24.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Darksteel | 156 | Uncommon | $1.29 | $24.99 |