Cheapest priced copy (Modern Masters): $0.35 at Card Kingdom, near mint, their price list as of .
Latchkey Faerie 
Creature — Faerie Rogue · 3/1 · Common · The List · #MOR-39
Flying
Prowl {2}{U} (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Faerie or Rogue.)
When this creature enters, if its prowl cost was paid, draw a card.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
4 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Masters | 50 | Common | $0.35 | $0.49 |
| Morningtide | 39 | Common | $0.35 | $0.49 |
| The List | MOR-39 | Common | $0.35 | — |
| Zendikar Rising Commander | 28 | Common | $0.35 | — |