Kykar, Zephyr Awakener + Archaeomancer + Time Walk

Kykar, Zephyr Awakener

Archaeomancer

Time Walk

How it works

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