Cheapest priced copy (The List): $0.35 at Card Kingdom, near mint, their price list as of .
Thran War Machine 
Artifact Creature — Construct · 4/5 · Uncommon · Urza's Legacy · #134
Echo {4} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
This creature attacks each combat if able.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.35 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The List | ULG-134 | Uncommon | $0.35 | — |
| Urza's Legacy | 134 | Uncommon | $0.35 | $1.49 |