Trazyn the Infinite, Voltaic Construct, and Prismatic Geoscope

Prerequisites

• Trazyn the Infinite on the battlefield
• Voltaic Construct on the battlefield or in the graveyard
• Prismatic Geoscope in the graveyard

Steps

1. Activate Trazyn using Prismatic Geoscope's ability by tapping it, adding at least three mana of any color
2. Activate Voltaic Construct or activate Trazyn using Voltaic Construct's ability by paying , untapping Trazyn
3. Repeat

Results

• Infinite colored mana
• Infinite untap of artifact creatures