Bello, Bard of the Brambles, Voltaic Construct, The Great Henge, and Nyxbloom Ancient

Prerequisites

• Bello, Bard of the Brambles on the battlefield
• Voltaic Construct on the battlefield
• The Great Henge on the battlefield
• Nyxbloom Ancient on the battlefield

Steps

1. Activate The Great Henge by tapping it, adding six mana due to Nyxbloom Ancient and gaining 2 life
2. Activate Voltaic Construct by paying , untapping The Great Henge which is an artifact creature due to Bello
3. Repeat any number of times
4. Activate The Great Henge by tapping it, adding and causing you to gain 2 life
5. Activate Voltaic Construct by paying , untapping The Great Henge
6. Repeat

Results

• Infinite lifegain
• Infinite lifegain triggers
• Infinite mana artifact creatures you control can produce
• Infinite mana most artifacts you control can produce
• Infinite green mana
• Infinite mana artifacts you control can produce
• Infinite untap of artifacts you control