This clever loop relies on Training Grounds to reduce the activation cost of Emiel the Blessed's blink ability down to a single mana, making it cheap enough to sustain. Exhibition Magician provides the fuel for this engine, as each flicker lets you choose a Treasure token to enter the battlefield alongside it. By tapping and sacrificing that Treasure for mana, you generate the exact resource needed to repeat Emiel the Blessed's exile-and-return cycle indefinitely.