Wormfang Manta, Hushwing Gryff, and Mistmeadow Witch

Prerequisites

• Wormfang Manta on the battlefield
• Hushwing Gryff on the battlefield
• Mistmeadow Witch on the battlefield
• each turn available

Steps

1. Activate Mistmeadow Witch targeting Wormfang Manta
2. On LTB Wormfang Manta triggers, giving you an extra turn
3. On ETB Hushwing Gryff prevents Wormfang Manta's trigger, so you do not skip your next turn
4. Take your extra turn

Results

• Infinite turns