Voltaic Construct, Donatello, Mutant Mechanic, and Bag End Banquet

Prerequisites

• Voltaic Construct on the battlefield
• Donatello, Mutant Mechanic on the battlefield
• Bag End Banquet on the battlefield

Steps

1. Animate Bag End Banquet using Donatello
2. Activate Bag End Banquet by tapping it, adding Activate Voltaic Construct by paying , untapping Bag End Banquet
3. Repeat from step 2

Results

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