Cheapest priced copy (New Phyrexia): $0.35 at Card Kingdom, near mint, their price list as of .
Furnace Scamp 
Creature — Phyrexian Beast · 1/1 · Common · New Phyrexia · #84
Whenever this creature deals combat damage to a player, you may sacrifice it. If you do, this creature deals 3 damage to that player.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| New Phyrexia | 84 | Common | $0.35 | $0.49 |