Saffi Eriksdotter + Sister Hospitaller + Umbral Collar Zealot

Saffi Eriksdotter

Sister Hospitaller

Umbral Collar Zealot

How it works

1. Activate Saffi by sacrificing it, targeting Sister Hospitaller
2. Activate Umbral Collar Zealot by sacrificing Sister Hospitaller
3. When Sister Hospitaller dies, Saffi triggers, returning Sister Hospitaller from your graveyard to the battlefield.
4. When Sister Hospitaller enters, it triggers, returning Saffi from your graveyard to the battlefield and causing you to gain 2 life.
5. Resolve the Umbral Collar Zealot ability.
6. Repeat.