Wormfang Manta, Tocatli Honor Guard, and Mistmeadow Witch

Prerequisites

• Wormfang Manta on the battlefield
• Tocatli Honor Guard on the battlefield
• Mistmeadow Witch on the battlefield
• each turn available

Steps

1. Activate Mistmeadow Witch for targeting Wormfang Manta
2. Wormfang Manta is exiled
3. Wormfang Manta's LTB triggers, granting you an extra turn after this one
4. At the beginning of your end step, Wormfang Manta returns to the battlefield
5. Repeat for infinite turns

Results

• Infinite turns