Cheapest priced copy (Planeshift): $0.35 at Card Kingdom, near mint, their price list as of .
Cavern Harpy 
Creature — Harpy Beast · 2/1 · Common · The List · #PLS-97
Flying
When this creature enters, return a blue or black creature you control to its owner's hand.
Pay 1 life: Return this creature to its owner's hand.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
2 printings · $0.35 to $39.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Planeshift | 97 | Common | $0.35 | $39.99 |
| The List | PLS-97 | Common | $0.35 | — |
One ruling from Wizards of the Coast
- 4 October 2004You choose the creature to return on resolution of the triggered ability. This is not targeted.