Yomiji, Who Bars the Way, Leyline of Singularity, and Yahenni, Undying Partisan

Prerequisites

• Yomiji, Who Bars the Way on the battlefield
• Leyline of Singularity on the battlefield
• Yahenni, Undying Partisan on the battlefield

Steps

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

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite storm count