Yomiji, Who Bars the Way, Deathrender, and Yahenni, Undying Partisan

Prerequisites

• Yomiji, Who Bars the Way on the battlefield
• Deathrender on the battlefield
• Yahenni, Undying Partisan on the battlefield

Steps

1. Activate Yahenni by sacrificing the non-Yomiji legendary creature
2. Yomiji and Deathrender trigger
3. Resolve the Yomiji trigger, returning the legendary card from your graveyard to your hand
4. Resolve the Deathrender trigger, putting that card onto the battlefield from your hand and attaching Deathrender to it
5. Resolve the Yahenni trigger
6. Repeat

Results

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