Junji, the Midnight Sky + Spawning Pit + Metamorphosis Fanatic + Susurian Voidborn

Junji, the Midnight Sky

Spawning Pit

Metamorphosis Fanatic

Susurian Voidborn

How it works

1. Activate Spawning Pit by sacrificing Metamorphosis Fanatic.
2. When Metamorphosis Fanatic dies, Susurian Voidborn triggers, causing an opponent to lose 1 life and you to gain 1 life.
3. Resolve the Spawning Pit ability.
4. Activate Spawning Pit by sacrificing Junji.
5. When Junji dies, it and Susurian Voidborn trigger.
6. Resolve the Susurian Voidborn trigger, causing an opponent to lose 1 life and you to gain 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 Spawning Pit ability.
10. Repeat.