Trazyn the Infinite, Voltaic Construct, and Basalt Monolith

Prerequisites

• Trazyn the Infinite on the battlefield
• Voltaic Construct on the battlefield or in the graveyard
• Basalt Monolith in the graveyard

Steps

1. Activate Trazyn using Basalt Monolith's ability by tapping it, adding Activate Voltaic Construct or activate Trazyn using Voltaic Construct's ability by paying , untapping Trazyn
2. Repeat

Results

• Infinite colorless mana
• Infinite untap of artifact creatures