Ephemerate is a rare Instant card from Secret Lair Drop (SLD), collector number 1990. Current market price: $7.48, TCGplayer market prices via Scryfall.
Exile target creature you control, then return it to the battlefield under its owner's control. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)