Ygra, Eater of All + Cauldron Familiar + Tormod, the Desecrator + Yahenni, Undying Partisan

Ygra, Eater of All

Cauldron Familiar

Tormod, the Desecrator

Yahenni, Undying Partisan

How it works

1. Activate Cauldron Familiar by sacrificing a Food.
2. Ygra triggers, putting two +1/+1 counters on it.
3. Resolve the Cauldron Familiar ability, returning it from your graveyard to the battlefield.
4. Cauldron Familiar and Tormod trigger.
5. Resolve the Tormod trigger, creating a creature token.
6. Resolve the Cauldron Familiar trigger, causing each opponent to lose 1 life and you to gain 1 life.
7. Activate Yahenni by sacrificing Cauldron Familiar.
8. When Cauldron Familiar dies, Ygra triggers, putting two +1/+1 counters on it.
9. Resolve the Yahenni ability.
10. Repeat.