Cauldron Familiar + Nuka-Cola Vending Machine + Gourmand's Talent + Yahenni, Undying Partisan

Cauldron Familiar

Nuka-Cola Vending Machine

Gourmand's Talent

Yahenni, Undying Partisan

How it works

1. Activate Cauldron Familiar by sacrificing another artifact, which is a Food due to Gourmand's Talent.
2. Nuka-Cola Vending Machine triggers, creating a tapped Treasure token.
3. Resolve the Cauldron Familiar ability, returning it from your graveyard to the battlefield.
4. When Cauldron Familiar enters the battlefield, it triggers, causing each opponent to lose 1 life and you to gain 1 life.
5. Activate Yahenni by sacrificing Cauldron Familiar.
6. Repeat.