Cheapest priced copy (Dominaria United): $0.49 at Card Kingdom, near mint, their price list as of .
Ragefire Hellkite 
Creature — Dragon · 5/3 · Rare · Dominaria United · #285
Flying
Whenever this creature attacks, you may sacrifice another creature. If you do, this creature gains double strike until end of turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.49 to $0.59 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dominaria United | 285 | Rare | $0.49 | $0.49 |
| Dominaria United | 426 | Rare | $0.59 | — |