Cauldron Familiar + Ragost, Deft Gastronaut + Weapons Manufacturing + Umbral Collar Zealot + Encroaching Mycosynth

Cauldron Familiar

Ragost, Deft Gastronaut

Weapons Manufacturing

Umbral Collar Zealot

Encroaching Mycosynth

How it works

1. Cast Cauldron Familiar by paying .
2. When Cauldron Familiar enters, it and Weapons Manufacturing trigger.
3. Resolve the Cauldron Familiar trigger, causing each opponent to lose 1 life and you to gain 1 life.
4. Resolve the Weapons Manufacturing trigger, creating a Munitions artifact token.
5. Activate Umbral Collar Zealot by sacrificing Cauldron Familiar.
6. Activate Cauldron Familiar by sacrificing the Munitions, as it is a Food due to Ragost.
7. The Munitions triggers, dealing 2 damage to any target.
8. Resolve the Cauldron Familiar ability, returning it from your graveyard to the battlefield.
9. Repeat from step 2.

This engine turns a simple cat into an infinite death-and-rebirth machine, fueled by the all-encompassing transformation of Encroaching Mycosynth which turns all your nonland permanents into artifacts. Because Ragost, Deft Gastronaut makes every artifact you control into a Food, the Munitions tokens created by Weapons Manufacturing can be freely sacrificed to return Cauldron Familiar from your graveyard. Each cycle drains your opponents with the cat's enter-the-battlefield trigger and pings them with the Munitions leaving the battlefield, while Umbral Collar Zealot provides a convenient outlet to fuel the loop and set up your draws with surveil.