Yomiji, Who Bars the Way, Leyline of Singularity, and Altar of Dementia

Prerequisites

• Yomiji, Who Bars the Way on the battlefield
• Leyline of Singularity on the battlefield
• Altar of Dementia on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing the creature that costs
2. Yomiji triggers, returning that creature from your graveyard to your hand
3. Resolve the Altar of Dementia ability
4. Cast that creature by paying
5. Repeat

Results

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