Double Vision + Venser, Shaper Savant + Naban, Dean of Iteration + Time Warp

Prerequisites

• You haven't cast an instant or sorcery spell this turn.

Steps

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

Effects

• Infinite turns
• Lock