Kykar, Zephyr Awakener + Ardent Elementalist + Time Walk

Kykar, Zephyr Awakener

Ardent Elementalist

Time Walk

How it works

1. Cast Time Walk by paying its mana cost.
2. Kykar triggers, exiling Ardent Elementalist.
3. Resolve Time Walk, causing you to take an extra turn after this one.
4. At the beginning of your end step, Kykar triggers, returning Ardent Elementalist from exile to the battlefield.
5. When Ardent Elementalist enters, it triggers, returning Time Walk from your graveyard to your hand.
6. Repeat each turn.