Kaya the Inexorable, Wormfang Manta, Torpor Orb, and Ashnod's Altar

Prerequisites

• Kaya the Inexorable on the battlefield
• Wormfang Manta on the battlefield
• Torpor Orb on the battlefield
• Ashnod's Altar on the battlefield
• each turn available

Steps

1. Activate Kaya the Inexorable's first ability by putting a loyalty counter on it, putting a ghostform counter on Wormfang Manta
2. Activate Ashnod's Altar by sacrificing Wormfang Manta, adding
3. When Wormfang Manta dies, its second ability and its ghostform ability trigger
4. Resolve the ghostform trigger, returning Wormfang Manta from your graveyard to your hand and creating a 1/1 Spirit creature token
5. Resolve the second trigger, causing you to take an extra turn after this one
6. Cast Wormfang Manta by paying
7. Wormfang Manta's first ability does not trigger due to Torpor Orb
8. Repeat each turn

Results

• Infinite turns