Double Play is a common Sorcery card from Unglued (UGL), collector number 55. Current market price: $0.24, TCGplayer market prices via Scryfall.
Choose another player. Search your library for a basic land card, put it onto the battlefield, then shuffle. At the beginning of the first upkeep in your next game with that player, search your library for a basic land card, put it onto the battlefield, then shuffle.