Double Vision, Venser, Shaper Savant, Elesh Norn, Mother of Machines, and Capture of Jingzhou

Prerequisites

• Double Vision on the battlefield
• Venser, Shaper Savant in hand
• Elesh Norn, Mother of Machines on the battlefield
• Capture of Jingzhou in hand
• You haven't cast an instant or sorcery spell this turn
• each turn available

Steps

1. Cast Capture of Jingzhou by paying
2. Double Vision triggers, copying Capture of Jingzhou
3. Holding priority, cast Venser by paying
4. When Venser enters the battlefield, it triggers twice, returning itself and the original Capture of Jingzhou to your hand from the battlefield and stack respectively
5. Resolve the copy of Capture of Jingzhou, causing you to take an extra turn after this one
6. Repeat each turn

Results

• Infinite turns