Chrome Dome, Boommobile, and Panharmonicon

Prerequisites

• Chrome Dome on the battlefield
• Boommobile on the battlefield
• Panharmonicon on the battlefield
• available

Steps

1. Activate Chrome Dome by paying , creating a token copy of Boommobile
2. When the Boommobile token enters the battlefield, it triggers twice, adding that can only be spent to activate abilities
3. Repeat

Results

• Infinite colored mana that can only be spent to activate abilities
• Infinite copies of artifacts you control
• Infinite damage