Xenic Poltergeist, Voltaic Construct, and Basalt Monolith

Prerequisites

• Xenic Poltergeist on the battlefield
• Voltaic Construct on the battlefield
• Basalt Monolith on the battlefield
• Xenic Poltergeist and Basalt Monolith do not have summoning sickness

Steps

1. Activate Xenic Poltergeist by tapping it, causing Basalt Monolith to become an artifact creature until end of turn
2. Activate Basalt Monolith by tapping it, adding
3. Activate Voltaic Construct by paying , untapping Basalt Monolith
4. Repeat from step 2

Results

• Infinite colorless mana