Mortuary, Altar of Dementia, Shield Sphere, and Gwenom, Remorseless

Prerequisites

• Mortuary on the battlefield
• Altar of Dementia on the battlefield
• Shield Sphere on the battlefield
• Gwenom, Remorseless on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing Shield Sphere When Shield Sphere dies, Mortuary triggers, putting Shield Sphere from your graveyard onto the top of your library
2. Resolve the Altar of Dementia ability
3. Cast Shield Sphere from the top of your library by paying 0 life
4. Repeat

Results

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