Palladium Myr, Voltaic Construct, and Training Grounds

Prerequisites

• Palladium Myr on the battlefield
• Voltaic Construct on the battlefield
• Training Grounds on the battlefield

Steps

1. Tap Palladium Myr for
2. Activate Voltaic Construct's ability to untap Palladium Myr, which only costs with Training Grounds on the battlefield
3. Repeat until you have infinite mana

Results

• Infinite colorless mana