Lost Chaperone

Flying
When Lost Chaperone enters the battlefield, target creature card in any face-up zone gains returnal until end of turn. (Spells with returnal can be cast from exile and only from exile.)
When Lost Chaperone dies, exile target creature card in any face-up zone.(Face-up zones include the battlefield, graveyards, the stack, and revealed or face-up cards in hands, libraries, or in exile.)