Kykar, Zephyr Awakener + Time Walk + Timeless Witness

Kykar, Zephyr Awakener

Time Walk

Timeless Witness

How it works

1. Cast Time Walk by paying its mana cost.
2. Kykar triggers, exiling Timeless Witness.
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 Timeless Witness from exile to the battlefield.
5. When Timeless Witness enters, it triggers, returning Time Walk from your graveyard to your hand.
6. Repeat each turn.