Ultimecia, Time Sorceress // Ultimecia, Omnipotent + Tetzin, Gnome Champion // The Golden-Gear Colossus + Biotransference + The Mind Stone

Ultimecia, Time Sorceress // Ultimecia, Omnipotent

Tetzin, Gnome Champion // The Golden-Gear Colossus

Biotransference

The Mind Stone

How it works

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