Saffi Eriksdotter + Viscera Seer + Metamorphosis Fanatic

Saffi Eriksdotter

Viscera Seer

Metamorphosis Fanatic

How it works

1. Activate Saffi by sacrificing it, targeting Metamorphosis Fanatic
2. Activate Viscera Seer by sacrificing Metamorphosis Fanatic
3. When Metamorphosis Fanatic dies, Saffi triggers, returning Metamorphosis Fanatic from your graveyard to the battlefield.
4. When Metamorphosis Fanatic enters, it triggers, returning Saffi from your graveyard to the battlefield.
5. Resolve the Viscera Seer ability.
6. Repeat.