Voltaic Construct, Tough Cookie, and Everflowing Chalice

Prerequisites

• Voltaic Construct on the battlefield
• Tough Cookie on the battlefield
• Everflowing Chalice on the battlefield
• available

Steps

1. Animate Everflowing Chalice using Tough Cookie
2. Activate Everflowing Chalice by tapping it, adding at least Activate Voltaic Construct by paying , untapping Everflowing Chalice
3. Repeat from step 2

Results

• Infinite colorless mana
• Infinite untap of artifact creatures you control