Cheapest priced copy (Shadowmoor): $0.35 at Card Kingdom, near mint, their price list as of .
Thornwatch Scarecrow 
Artifact Creature — Scarecrow · 4/4 · Common · Shadowmoor · #265
This creature has wither as long as you control a green creature. (It deals damage to creatures in the form of -1/-1 counters.)
This creature has vigilance as long as you control a white creature.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $3.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Shadowmoor | 265 | Common | $0.35 | $3.49 |