Cheapest priced copy (World Championship Decks 2004): $0.49 at Card Kingdom, near mint, their price list as of .
Furnace Dragon 
Creature — Dragon · 5/5 · Rare · Darksteel · #62
Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Flying
When this creature enters, if you cast it from your hand, exile all artifacts.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $0.49 to $7.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Darksteel | 62 | Rare | $0.69 | $7.99 |
| World Championship Decks 2004 | ap62sb | Rare | $0.49 | — |
| World Championship Decks 2004 | mb62sb | Rare | $0.49 | — |
One ruling from Wizards of the Coast
- 20 September 2013If a creature (such as Clone) enters the battlefield as a copy of this creature, the copy’s “enters-the-battlefield” ability will still trigger as long as you cast that creature spell from your hand.