This intricate loop turns Training Grounds into a powerful cost-reducer, dropping Emiel the Blessed's blink activation down to a mere single generic mana. With that discount in place, you can repeatedly exile Charming Scoundrel and bring it right back to the battlefield, triggering its entry ability over and over again. Every time Charming Scoundrel returns, it creates a Treasure token that you immediately sacrifice to pay for the next blink, fueling an endless cycle of leaves-the-battlefield and enters-the-battlefield events.