Cheapest priced copy (Marvel Super Heroes): $0.35 at Card Kingdom, near mint, their price list as of .
Stolen Stark Tech 
Artifact — Equipment · Common · Marvel Super Heroes · #114
Flash
When this Equipment enters, attach it to target creature you control. That creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)
Equipped creature gets +1/+0.
Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Marvel Super Heroes | 114 | Common | $0.35 | $0.49 |