Trove of Temptation is a uncommon Enchantment card from Ixalan (XLN), collector number 171. Current market price: $0.20 (foil $0.60), TCGplayer market prices via Scryfall.
Each opponent must attack you or a planeswalker you control with at least one creature each combat if able. At the beginning of your end step, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")