Automated Assembly Line, Gonti's Aether Heart, and Panharmonicon

Prerequisites

• Automated Assembly Line on the battlefield
• Gonti's Aether Heart on the battlefield
• Panharmonicon on the battlefield

Steps

1. Activate Automated Assembly Line by paying , creating a 3/3 Robot artifact creature token
2. When the Robot enters the battlefield, Gonti's Aether Heart triggers twice, causing you to get
3. Repeat

Results

• Infinite ETB
• Infinite creature tokens
• Infinite energy counters