Morningtide's Light is a mythic Sorcery card from Lorwyn Eclipsed (ECL), collector number 27. Current market price: $2.42 (foil $2.01), TCGplayer market prices via Scryfall.
Exile any number of target creatures. At the beginning of the next end step, return those cards to the battlefield tapped under their owners' control. Until your next turn, prevent all damage that would be dealt to you. Exile Morningtide's Light.