By wrapping Pemmin's Aura around Black Market Tycoon, you set up a self-sustaining mana loop where the enchanted creature taps to generate currency. The real magic happens when Doubling Season enters the mix, turning every single tap of the Tycoon into a pair of Treasure tokens instead of just one. Sacrificing just one of those doubled Treasures provides the exact blue mana needed to activate Pemmin's Aura and untap the Tycoon, leaving you with a net gain of an extra Treasure token every single iteration. This lets you spin the loop infinitely to flood the board with endless mana and artifacts, though you will want to keep a close eye on Black Market Tycoon's upkeep penalty before you start stacking up your vast wealth!