Junji, the Midnight Sky, Yahenni, Undying Partisan, Embalmed Ascendant, and Metamorphosis Fanatic

Prerequisites

• Junji, the Midnight Sky on the battlefield
• Yahenni, Undying Partisan on the battlefield
• Embalmed Ascendant on the battlefield
• Metamorphosis Fanatic on the battlefield

Steps

1. Activate Yahenni by sacrificing Metamorphosis Fanatic
2. When Metamorphosis Fanatic dies, Embalmed Ascendant triggers, causing you to gain 1 life and each opponent to lose 1 life
3. Resolve the Yahenni ability
4. Activate Yahenni by sacrificing Junji
5. When Junji dies, it and Embalmed Ascendant trigger
6. Resolve the Embalmed Ascendant trigger, causing you to gain 1 life and each opponent to lose 1 life
7. Resolve the Junji trigger, returning Metamorphosis Fanatic from your graveyard to the battlefield and causing you to lose 2 life
8. When Metamorphosis Fanatic enters, it triggers, returning Junji from your graveyard to the battlefield
9. Resolve the Yahenni ability
10. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite lifeloss