Rhys the Exiled is a rare Legendary Creature — Elf Warrior card from Morningtide (MOR), collector number 135. Current market price: $4.66 (foil $25.99), TCGplayer market prices via Scryfall.
Whenever Rhys attacks, you gain 1 life for each Elf you control. {B}, Sacrifice an Elf: Regenerate Rhys.