Cheapest priced copy (Final Fantasy): $0.35 at Card Kingdom, near mint, their price list as of .
Undercity Dire Rat 
Creature — Rat · 2/2 · Common · Final Fantasy · #123
Rat Tail — When this creature dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Final Fantasy | 123 | Common | $0.35 | $0.49 |