United Battlefront is a rare Sorcery card from Tarkir: Dragonstorm (TDM), collector number 330. Current market price: $0.28 (foil $0.46), TCGplayer market prices via Scryfall.
Look at the top seven cards of your library. Put up to two noncreature, nonland permanent cards with mana value 3 or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order.