Tezzeret, Betrayer of Flesh, Voltaic Construct, and Basalt Monolith

Prerequisites

• Tezzeret, Betrayer of Flesh on the battlefield
• Voltaic Construct on the battlefield
• Basalt Monolith on the battlefield
• Tezzeret has at least two loyalty counters
• Basalt Monolith does not have summoning sickness

Steps

1. Activate Tezzeret's second loyalty ability by removing two loyalty counters from it, causing Basalt Monolith to become an artifact creature
2. Activate Basalt Monolith's first ability by tapping it, adding
3. Activate Voltaic Construct by paying , untapping Basalt Monolith
4. Repeat from step 2

Results

• Infinite colorless mana
• Infinite tap triggers