Saffi Eriksdotter + Sister Hospitaller + Yahenni, Undying Partisan

Saffi Eriksdotter

Sister Hospitaller

Yahenni, Undying Partisan

How it works

1. Activate Saffi by sacrificing it, targeting Sister Hospitaller
2. Activate Yahenni 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 Yahenni ability.
6. Repeat.