Cauldron Familiar + Ragost, Deft Gastronaut + Weapons Manufacturing + Encroaching Mycosynth + Bloodflow Connoisseur

Cauldron Familiar

Ragost, Deft Gastronaut

Weapons Manufacturing

Encroaching Mycosynth

Bloodflow Connoisseur

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 Bloodflow Connoisseur 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 loop relies on Encroaching Mycosynth turning every nonland permanent into an artifact, ensuring that everything you play fuels your engines. With Ragost, Deft Gastronaut granting all your artifacts the Food type, your new Munitions tokens—created by Weapons Manufacturing whenever a nontoken artifact enters—can be immediately sacrificed to recur Cauldron Familiar from your graveyard. Each time the familiar re-enters, it drains your opponents while Weapons Manufacturing spawns another Munitions, and sending that token away triggers its own damage ability. Finally, Bloodflow Connoisseur provides a repeatable sacrifice outlet while growing massively with endless +1/+1 counters, and Ragost's end-step untap even capitalizes on your constant lifegain.