Wormfang Manta, Muldrotha, the Gravetide, Hushwing Gryff, and Ashnod's Altar

Prerequisites

• Wormfang Manta on the battlefield
• Muldrotha, the Gravetide on the battlefield
• Hushwing Gryff on the battlefield
• Ashnod's Altar on the battlefield
• You have not cast a creature spell using Muldrotha this turn
• each turn available

Steps

1. Activate Ashnod's Altar by sacrificing Wormfang Manta, adding
2. When Wormfang Manta dies, its second ability triggers, causing you to take an extra turn after this one
3. Cast Wormfang Manta by paying
4. Wormfang Manta's first ability does not trigger when it enters the battlefield due to Hushwing Gryff
5. Repeat each turn

Results

• Infinite turns