Cheapest priced copy (Darksteel): $0.35 at Card Kingdom, near mint, their price list as of .
Machinate 
Instant · Common · Darksteel · #24
Look at the top X cards of your library, where X is the number of artifacts you control. Put one of those cards into your hand and the rest on the bottom of your library in any order.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Darksteel | 24 | Common | $0.35 | $0.49 |