Ygra, Eater of All + Cauldron Familiar + Phyrexian Altar + Skeleton Crew

Ygra, Eater of All

Cauldron Familiar

Phyrexian Altar

Skeleton Crew

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 Skeleton Crew trigger.
5. Resolve the Skeleton Crew 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 Phyrexian Altar by sacrificing Cauldron Familiar.
8. When Cauldron Familiar dies, Ygra triggers, putting two +1/+1 counters on it.
9. Repeat.