Kykar, Zephyr Awakener, Timeless Witness, and Time Warp

Prerequisites

• Kykar, Zephyr Awakener on the battlefield
• Timeless Witness on the battlefield
• Time Warp in hand
• each turn available

Steps

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

Results

• Infinite turns
• Lock