Cheapest priced copy (Gatecrash): $0.35 at Card Kingdom, near mint, their price list as of .
Riot Gear 
Artifact — Equipment · Common · Gatecrash · #236
Equipped creature gets +1/+2.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Gatecrash | 236 | Common | $0.35 | $0.49 |