Cheapest priced copy (Darksteel): $0.69 at Card Kingdom, near mint, their price list as of .
Goblin Archaeologist 
Creature — Goblin Artificer · 1/2 · Uncommon · Darksteel · #63
{R}, {T}: Flip a coin. If you win the flip, destroy target artifact and untap this creature. If you lose the flip, sacrifice this creature.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper