Sun Titan + Sakashima the Impostor + Loyal Retainers + Altar of Dementia

Sun Titan

Sakashima the Impostor

Loyal Retainers

Altar of Dementia

How it works

1. Cast Sun Titan.
2. When Sun Titan enters the battlefield you may, return Loyal Retainers to the battlefield.
3. Activate Loyal Retainers, targeting Sakashima the Impostor.
4. Have Sakashima the Impostor enter as a copy of Sun Titan.
5. With Sakashima's enter the battlefield ability, return Loyal Retainers to the battlefield.
6. Sacrifice Sakashima to Altar of Dementia.
7. Activate Loyal Retainers, targeting Sakashima the Impostor.
8. Repeat.