Revel in Riches (Rainbow Foil) [Secret Lair Drop Series]

Set: Secret Lair Drop Series Type: Enchantment Rarity: Rare Cost: {4}{B} Whenever a creature an opponent controls dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")At the beginning of your upkeep, if you control ten or more Treasures, you win the game. I can prove I won fair and square—I have the receipt.