Ultimecia, Time Sorceress // Ultimecia, Omnipotent, Moonmist, Isochron Scepter, and Baboon Spirit

Prerequisites

• Ultimecia, Time Sorceress // Ultimecia, Omnipotent on the battlefield
• Moonmist in exile
• Isochron Scepter on the battlefield
• Baboon Spirit on the battlefield
• plus each turn available

Steps

1. Activate Isochron Scepter by paying and tapping it, casting a copy of Moonmist without paying its mana cost
2. Resolve Moonmist, transforming Ultimecia, Time Sorceress into Ultimecia, Omnipotent
3. Ultimecia, Omnipotent triggers, causing you to take an extra turn after this one
4. Activate Baboon Spirit by paying , exiling Infinite Guideline Station
5. At the beginning of your end step, Baboon Spirit triggers, returning Ultimecia, Time Sorceress from exile to the battlefield
6. Whenever Ultimecia, Time Sorceress enters the battlefield, it triggers, causing you to surveil 2
7. Repeat each turn

Results

• Infinite turns