Cheapest priced copy (Modern Horizons 3): $10.99 at Card Kingdom, near mint, their price list as of .
Phelia, Exuberant Shepherd 
Legendary Creature — Dog · 2/2 · Rare · Modern Horizons 3 · #40
Flash
Whenever Phelia attacks, exile up to one other target nonland permanent. At the beginning of the next end step, return that card to the battlefield under its owner's control. If it entered under your control, put a +1/+1 counter on Phelia.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
5 printings · $10.99 to $37.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons 3 | 40 | Rare | $10.99 | $10.99 |
| Modern Horizons 3 | 364 | Rare | $11.99 | $37.99 |
| Modern Horizons 3 | 478 | Rare | — | — |
| The List | MH3-40 | Rare | — | — |
| Modern Horizons 3 Promos | 40s | Rare | — | $15.99 |
5 rulings from Wizards of the Coast
- 7 June 2024If the permanent that returns to the battlefield has any abilities that trigger at the beginning of the end step, those abilities won't trigger that turn.
- 7 June 2024Phelia is a good dog.
- 7 June 2024Auras attached to the exiled permanent will be put into their owners' graveyards. Equipment attached to the exiled permanent will become unattached and remain on the battlefield. Any counters on the exiled permanent will cease to exist. Once the exiled permanent returns, it's considered a new object with no relation to the object that it was.
- 7 June 2024If a token is exiled this way, it will cease to exist and won't return to the battlefield.
- 7 June 2024The exiled card will return to the battlefield at the beginning of the end step even if Phelia is no longer on the battlefield.