Villainous Wealth is a rare Sorcery card from Khans of Tarkir (KTK), collector number 211. Current market price: $0.27 (foil $8.76), TCGplayer market prices via Scryfall.
Target opponent exiles the top X cards of their library. You may cast any number of spells with mana value X or less from among them without paying their mana costs.