This loop relies on a brilliant cost-reduction engine: Zirda, the Dawnwaker lowers the activation cost of Emiel the Blessed's blink ability to just one mana. By targeting Charming Scoundrel with this discounted ability, you trigger the Scoundrel's entry effect to continuously generate a Treasure token each iteration. You then simply crack that Treasure to pay for the next activation, creating an endless cycle. Because Emiel the Blessed exiles and returns the Charming Scoundrel over and over, you effortlessly achieve infinite creature enters-the-battlefield and leaves-the-battlefield triggers.