This clever loop sets up an infinite turn engine by leveraging the repeatable blink and token-generating prowess of Kykar, Zephyr Awakener every time you cast a noncreature spell. By casting Walk the Aeons to secure your extra turn, you trigger Kykar to temporarily exile Ardent Elementalist until the end step, dodging the need for the spell's steep buyback cost. When the delayed trigger fires, the returning Ardent Elementalist enters the battlefield and its ability plucks Walk the Aeons right back out of your graveyard, ready to be cast again on your next turn.