Cheapest priced copy (Shadowmoor): $0.35 at Card Kingdom, near mint, their price list as of .
Chainbreaker 
Artifact Creature — Scarecrow · 3/3 · Common · Shadowmoor · #249
This creature enters with two -1/-1 counters on it.
{3}, {T}: Remove a -1/-1 counter from target creature.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $3.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Shadowmoor | 249 | Common | $0.35 | $3.99 |