Cauldron Familiar + Ragost, Deft Gastronaut + Weapons Manufacturing + Ashnod's Altar + Encroaching Mycosynth

Cauldron Familiar

Ragost, Deft Gastronaut

Weapons Manufacturing

Ashnod's Altar

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 Ashnod's Altar 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 transforms your entire battlefield into a devastating, self-sustaining engine fueled by Encroaching Mycosynth, which turns all your permanents into artifacts. Ragost, Deft Gastronaut seizes upon this by giving every single one of those artifacts the Food type, meaning your Munitions tokens and creatures can be fed right back into the loop. You cast Cauldron Familiar to trigger Weapons Manufacturing for a Munitions token, sacrifice the cat to Ashnod's Altar for mana, and then use that Munitions token as a Food to bring the Familiar right back. The Munitions token leaves the battlefield to deal damage as it's sacrificed, and Ragost even untaps itself at the end step thanks to the constant lifegain from the Familiar's entrance.