Cheapest priced copy (Conspiracy: Take the Crown): $0.35 at Card Kingdom, near mint, their price list as of .
Vaporkin 
Creature — Elemental · 2/1 · Common · Theros · #72
Flying
This creature can block only creatures with flying.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Conspiracy: Take the Crown | 124 | Common | $0.35 | $0.49 |
| Theros | 72 | Common | $0.35 | $0.49 |