Karn, the Great Creator + Prismatic Geoscope + Voltaic Construct

C identity

Commander legal

The 3 combo pieces

• Karn, the Great Creator
• Prismatic Geoscope
• Voltaic Construct

How to execute it

1. Animate Prismatic Geoscope using Karn, the Great Creator.
2. Activate Prismatic Geoscope by tapping it, adding at least three mana of any color
3. Activate Voltaic Construct by paying {2}, untapping Prismatic Geoscope.
4. Repeat from step 2.

What the combo produces

• Infinite colored mana
• Infinite untap of artifact creatures you control