Cheapest priced copy (Masters 25): $0.35 at Card Kingdom, near mint, their price list as of .
Whitemane Lion 
Creature — Cat · 2/2 · Common · Eternal Masters · #37
Flash
When this creature enters, return a creature you control to its owner's hand.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
11 printings · $0.35 to $1.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Masters 25 | 39 | Common | $0.35 | $0.99 |
| Commander 2014 | 96 | Common | $0.35 | — |
| Duel Decks: Venser vs. Koth | 2 | Common | $0.39 | — |
| Dominaria Remastered | 35 | Common | $0.35 | $0.49 |
| Dominaria Remastered | 277 | Common | $0.35 | $0.99 |
| Eternal Masters | 37 | Common | $0.35 | $0.79 |
| Planar Chaos | 22 | Common | $0.39 | $1.99 |
| The List | C14-96 | Common | $0.35 | — |
| The List | PLC-22 | Common | $0.35 | — |
| Salvat 2005 | L32 | Common | — | — |
| Time Spiral Remastered | 50 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 8 December 2022Whitemane Lion's ability doesn't target any creature, therefore no player may take actions between the time you choose the creature to return and the time you return it.
- 8 December 2022You may return Whitemane Lion itself to its owner's hand as its triggered ability resolves. If you don't control any other creature, you must return it.