Kykar, Zephyr Awakener, Ardent Elementalist, and Walk the Aeons

Prerequisites

• Kykar, Zephyr Awakener on the battlefield
• Ardent Elementalist on the battlefield
• Walk the Aeons in hand
• each turn available

Steps

1. Cast Walk the Aeons by paying its mana cost
2. Kykar triggers, exiling Ardent Elementalist
3. Resolve Walk the Aeons, 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 Walk the Aeons from your graveyard to your hand
6. Repeat each turn

Results

• Infinite turns
• Lock