Jin-Gitaxias, Progress Tyrant + Venser, Shaper Savant + Panharmonicon + Capture of Jingzhou

Jin-Gitaxias, Progress Tyrant

Venser, Shaper Savant

Panharmonicon

Capture of Jingzhou

How it works

1. Cast Capture of Jingzhou by paying 3.
2. Jin-Gitaxias triggers, copying Capture of Jingzhou.
3. Holding priority, cast Venser by paying 2.
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.

This brilliantly oppressive loop locks your opponents out of the game while granting you infinite turns. By casting Capture of Jingzhou, you trigger Jin-Gitaxias, Progress Tyrant to copy the sorcery for free, while Panharmonicon doubles the enter-the-battlefield trigger of Venser, Shaper Savant so you can cleanly bounce both Venser and the original spell right back to your hand.