Berta, Wise Extrapolator, Animation Module, Phantom Train, and Tarrian's Soulcleaver

Prerequisites

• Berta, Wise Extrapolator on the battlefield
• Animation Module on the battlefield
• Phantom Train on the battlefield
• Tarrian's Soulcleaver on the battlefield

Steps

1. Activate Phantom Train by sacrificing another artifact or creature Tarrian's Soulcleaver triggers, putting a +1/+1 counter on Berta
2. Berta and Animation Module trigger
3. Resolve the Berta trigger, adding
4. Resolve the Animation Module trigger, causing you to pay to create a 1/1 Servo artifact creature token
5. Resolve the Phantom Train ability
6. Repeat

Results

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