Kykar, Zephyr Awakener + Time Walk + Shipwreck Dowser

Kykar, Zephyr Awakener

Time Walk

Shipwreck Dowser

How it works

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