Junji, the Midnight Sky + Spawning Pit + Karmic Guide + Susurian Voidborn

Junji, the Midnight Sky

Spawning Pit

Karmic Guide

Susurian Voidborn

How it works

1. Activate Spawning Pit by sacrificing Karmic Guide.
2. When Karmic Guide 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 Karmic Guide from your graveyard to the battlefield and causing you to lose 2 life.
8. When Karmic Guide enters, it triggers, returning Junji from your graveyard to the battlefield.
9. Resolve the Spawning Pit ability.
10. Repeat.