Exile into Darkness is a uncommon Sorcery card from Saviors of Kamigawa (SOK), collector number 67. Current market price: $0.16 (foil $0.97), TCGplayer market prices via Scryfall.
Target player sacrifices a creature of their choice with mana value 3 or less. At the beginning of your upkeep, if you have more cards in hand than each opponent, you may return this card from your graveyard to your hand.