Kykar, Zephyr Awakener, Walk the Aeons, and Damage Control Crew

Prerequisites

• Kykar, Zephyr Awakener on the battlefield
• Walk the Aeons in hand
• Damage Control Crew on the battlefield
• each turn available

Steps

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

Results

• Infinite turns
• Lock