Myr Welder + Timeless Lotus + Voltaic Construct

WUBRG identity

Commander legal

The 3 combo pieces

• Myr Welder
• Timeless Lotus
• Voltaic Construct

How to execute it

1. Activate Myr Welder using Timeless Lotus's ability by tapping it, adding {W}{U}{B}{R}{G}
2. If Voltaic Construct is on the battlefield, activate Voltaic Construct by paying {2}, untapping Myr Welder. Otherwise, activate Myr Welder using Voltaic Construct's ability by paying {2}, untapping Myr Welder.
3. Repeat.

What the combo produces

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