Kykar, Zephyr Awakener, Scholar of the Ages, and Time Walk

Prerequisites

• Kykar, Zephyr Awakener on the battlefield
• Scholar of the Ages on the battlefield
• Time Walk in hand
• each turn available

Steps

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

Results

• Infinite turns
• Lock