Junji, the Midnight Sky + Karmic Guide + Vengeful Bloodwitch + Phantom Train

Junji, the Midnight Sky

Karmic Guide

Vengeful Bloodwitch

Phantom Train

How it works

1. Activate Phantom Train by sacrificing Karmic Guide.
2. When Karmic Guide dies, Vengeful Bloodwitch triggers, causing you to gain 1 life and target opponent to lose 1 life.
3. Resolve the Phantom Train ability.
4. Activate Phantom Train by sacrificing Junji.
5. When Junji dies, it and Vengeful Bloodwitch trigger.
6. Resolve the Vengeful Bloodwitch trigger, causing you to gain 1 life and target opponent to lose 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 Phantom Train ability.
10. Repeat.