Cheapest priced copy (Darksteel): $0.35 at Card Kingdom, near mint, their price list as of .
Quicksilver Behemoth 
Creature — Beast · 4/5 · Common · Darksteel · #30
Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
When this creature attacks or blocks, return it to its owner's hand at end of combat. (Return it only if it's on the battlefield.)
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Darksteel | 30 | Common | $0.35 | $0.49 |