Cheapest priced copy (Double Masters): $12.99 at Card Kingdom, near mint, their price list as of .
Kuldotha Forgemaster 
Artifact Creature — Construct · 3/5 · Rare · Scars of Mirrodin · #169
{T}, Sacrifice three artifacts: Search your library for an artifact card, put it onto the battlefield, then shuffle.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $12.99 to $29.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Double Masters | 266 | Rare | $12.99 | $17.99 |
| Scars of Mirrodin | 169 | Rare | $13.99 | $29.99 |
One ruling from Wizards of the Coast
- 7 August 2020Kuldotha Forgemaster can be one of the three artifacts you sacrifice to activate the ability.