Jin-Gitaxias, Progress Tyrant, Venser, Shaper Savant, Naban, Dean of Iteration, and Nexus of Fate

Prerequisites

• Jin-Gitaxias, Progress Tyrant on the battlefield
• Venser, Shaper Savant in hand
• Naban, Dean of Iteration on the battlefield
• Nexus of Fate in hand
• You have not cast any instant or sorcery spell this turn
• available

Steps

1. Cast Nexus of Fate by paying
2. Jin-Gitaxis triggers, creating a copy of Nexus of Fate
3. Holding priority, cast Venser by paying
4. Venser enters the battlefield, returning itself and original Nexus of Fate to your hand
5. Resolve the Nexus of Fate copy, causing you to take an extra turn after this one
6. Move to your extra turn
7. Repeat

Results

• Infinite turns