Saffi Eriksdotter + Carrion Feeder + Karmic Guide

Saffi Eriksdotter

Carrion Feeder

Karmic Guide

How it works

1. Activate Saffi by sacrificing it, targeting Karmic Guide
2. Activate Carrion Feeder by sacrificing Karmic Guide
3. When Karmic Guide dies, Saffi triggers, returning Karmic Guide from your graveyard to the battlefield.
4. When Karmic Guide enters, it triggers, returning Saffi from your graveyard to the battlefield.
5. Resolve the Carrion Feeder ability.
6. Repeat.