Cauldron Familiar, Ragost, Deft Gastronaut, Weapons Manufacturing, Phantom Train, and Encroaching Mycosynth

Prerequisites

• Cauldron Familiar in hand
• Ragost, Deft Gastronaut on the battlefield
• Weapons Manufacturing on the battlefield
• Phantom Train on the battlefield
• Encroaching Mycosynth on the battlefield
• available

Steps

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 Phantom Train 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

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite damage
• Infinite lifegain triggers
• Infinite lifegain
• Infinite lifeloss
• Infinite +1/+1 counters on a creature