Voltaic Construct, Vhal, Candlekeep Researcher, and Encroaching Mycosynth

Prerequisites

• Voltaic Construct on the battlefield
• Vhal, Candlekeep Researcher on the battlefield
• Encroaching Mycosynth on the battlefield

Steps

1. Activate Vhal by tapping it, adding at least
2. Activate Voltaic Construct by paying , untapping Vhal
3. Repeat

Results

• Infinite untap of artifact creatures you control
• Infinite colorless mana that cannot be spent to cast spells from your hand