Kykar, Zephyr Awakener, Capture of Jingzhou, and Greenwarden of Murasa

Prerequisites

• Kykar, Zephyr Awakener on the battlefield
• Capture of Jingzhou in hand
• Greenwarden of Murasa on the battlefield
• each turn available

Steps

1. Cast Capture of Jingzhou by paying its mana cost
2. Kykar triggers, exiling Greenwarden of Murasa
3. Resolve Capture of Jingzhou, causing you to take an extra turn after this one
4. At the beginning of your end step, Kykar triggers, returning Greenwarden of Murasa from exile to the battlefield
5. When Greenwarden of Murasa enters, it triggers, returning Capture of Jingzhou from your graveyard to your hand
6. Repeat each turn

Results

• Infinite turns
• Lock