Junji, the Midnight Sky + Yahenni, Undying Partisan + Popular Egotist + Metamorphosis Fanatic

Junji, the Midnight Sky

Yahenni, Undying Partisan

Popular Egotist

Metamorphosis Fanatic

How it works

1. Activate Yahenni by sacrificing Metamorphosis Fanatic.
2. When Metamorphosis Fanatic dies, Popular Egotist triggers, causing you to gain 1 life and target opponent to lose 1 life.
3. Resolve the Yahenni ability.
4. Activate Yahenni by sacrificing Junji.
5. When Junji dies, it and Popular Egotist trigger.
6. Resolve the Popular Egotist trigger, causing you to gain 1 life and target 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.