Coveted Jewel + Ensoul Artifact + Voltaic Construct

U identity

Commander legal

The 3 combo pieces

• Coveted Jewel
• Ensoul Artifact
• Voltaic Construct

How to execute it

1. Activate Coveted Jewel by tapping it, adding three mana of any color
2. Activate Voltaic Construct by paying {2}, untapping Coveted Jewel.
3. Repeat

What the combo produces

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