Brotherhood Outcast, Altar of Dementia, and False Demise

Prerequisites

• Brotherhood Outcast on the battlefield
• Altar of Dementia on the battlefield
• False Demise on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing Brotherhood Outcast
2. When Brotherhood Outcast dies, False Demise triggers, returning Brotherhood Outcast from your graveyard to the battlefield
3. When Brotherhood Outcast enters the battlefield, it triggers, returning False Demise from your graveyard to the battlefield attached to Brotherhood Outcast
4. Resolve the Altar of Dementia ability
5. Repeat

Results

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