Wizard Mentor, Wormfang Manta, and Torpor Orb

Prerequisites

• Wizard Mentor on the battlefield
• Wormfang Manta in hand
• Torpor Orb on the battlefield
• Wizard Mentor does not have summoning sickness
• each turn available

Steps

1. During your precombat main phase, cast Wormfang Manta by paying
2. Wormfang Manta's first ability does not trigger due to Torpor Orb
3. Activate Wizard Mentor by tapping it, returning it and Wormfang Manta from the battlefield to your hand
4. When Wormfang Manta leaves the battlefield, its second ability triggers, causing you to take an extra turn after this one
5. Cast Wizard Mentor by paying
6. Repeat each turn

Results

• Infinite turns