Kaya's Ghostform, Altar of Dementia, and Renegade Rallier

Prerequisites

• Kaya's Ghostform on the battlefield
• Altar of Dementia on the battlefield
• Renegade Rallier on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing Renegade Rallier
2. When Renegade Rallier dies, Kaya's Ghostform triggers, returning Renegade Rallier from your graveyard to the battlefield
3. When Renegade Rallier enters, it triggers, returning Kaya's Ghostform from your graveyard to the battlefield attached to Renegade Rallier Resolve the Altar of Dementia ability
4. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill