Ultimecia, Time Sorceress // Ultimecia, Omnipotent, Tetzin, Gnome Champion // The Golden-Gear Colossus, Don & Leo, Problem Solvers, and Memnarch

Prerequisites

• Ultimecia, Time Sorceress // Ultimecia, Omnipotent on the battlefield
• Tetzin, Gnome Champion // The Golden-Gear Colossus on the battlefield
• Don & Leo, Problem Solvers on the battlefield
• Memnarch on the battlefield
• each turn available

Steps

1. Activate Memnarch by paying , causing Ultimecia, Time Sorceress to become an artifact
2. Declare The Golden-Gear Colossus as an attacker
3. It triggers, creating two 1/1 Gnome artifact creature tokens and transforming Ultimecia, Time Sorceress into Ultimecia, Omnipotent
4. Ultimecia, Omnipotent triggers, causing you to take an extra turn after this one
5. At the beginning of your end step, Don & Leo triggers, blinking Ultimecia, Omnipotent
6. It'll enter the battlefield as Ultimecia, Time Sorceress
7. When Ultimecia, Time Sorceress enters, it triggers, causing you to surveil 2
8. Repeat each turn

Results

• Infinite turns
• Lock