Wormfang Manta, Tocatli Honor Guard, and Thassa, Deep-Dwelling

Prerequisites

• Wormfang Manta on the battlefield
• Tocatli Honor Guard on the battlefield
• Thassa, Deep-Dwelling on the battlefield

Steps

1. At the beginning of your end step, Thassa triggers
2. Exile Wormfang Manta and then return it to the battlefield
3. Wormfang Manta's LTB triggers, granting you an extra turn after this one
4. Repeat for infinite turns

Results

• Infinite turns