Voltaic Construct, Does Machines, and Dreamstone Hedron

Prerequisites

• Voltaic Construct on the battlefield
• Does Machines on the battlefield
• Dreamstone Hedron on the battlefield

Steps

1. Animate Dreamstone Hedron using Does Machines
2. Activate Dreamstone Hedron by tapping it, adding Activate Voltaic Construct by paying , untapping Dreamstone Hedron
3. Repeat from step 2

Results

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