Cheapest priced copy (Duel Decks: Jace vs. Vraska): $0.35 at Card Kingdom, near mint, their price list as of .
Chronomaton 
Artifact Creature — Golem · 1/1 · Uncommon · Magic 2013 · #201
{1}, {T}: Put a +1/+1 counter on this creature.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duel Decks: Jace vs. Vraska | 2 | Uncommon | $0.35 | — |
| Magic 2013 | 201 | Uncommon | $0.35 | $0.99 |