Double Vision + Venser, Shaper Savant + Yarok, the Desecrated + Temporal Manipulation

Double Vision

Venser, Shaper Savant

Yarok, the Desecrated

Temporal Manipulation

How it works

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

This clever loop grants you infinite turns by endlessly recycling your own extra-turn spell and your bounce creature. It all starts when you cast Temporal Manipulation, which Double Vision happily copies so you get your extra turn right away. Before that copy resolves, you flash in Venser, Shaper Savant, whose entry triggers are doubled thanks to Yarok, the Desecrated. Those two triggers let Venser scoop both himself and the original Temporal Manipulation right back to your hand, leaving you fully loaded to repeat the entire sequence on your next turn.