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

Description

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 squareI have the receipt.