Cheapest priced copy (Mirrodin): $0.35 at Card Kingdom, near mint, their price list as of .
Scale of Chiss-Goria 
Artifact · Common · Mirrodin · #236
Flash
Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
{T}: Target creature gets +0/+1 until end of turn.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $4.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Mirrodin | 236 | Common | $0.35 | $4.49 |