This clever loop relies on Marina Vendrell acting as the tap-outlet to lock and unlock the Mirror Room // Fractured Realm door back and forth. Because Mirror Room // Fractured Realm features a passive ability on its other half that causes your triggered abilities to trigger an additional time, unlocking the door doubles the creation of token copies via the triggered ability. With Tuktuk Rubblefort on board to give your creatures haste (and Clever Conjurer's active tap-ability ready to untap Marina), you have all the pieces needed to continuously cycle the door. This lets the Clever Conjurer tokens untap Marina endlessly, generating an infinite number of creature enters-the-battlefield triggers and tapped creature tokens.