Mana Vault + March of the Machines + Voltaic Construct

U identity

Commander legal

The 3 combo pieces

• Mana Vault
• March of the Machines
• Voltaic Construct

How to execute it

1. Activate Mana Vault by tapping it, adding {C}{C}{C}.
2. Activate Voltaic Construct by paying {2}, untapping Mana Vault.
3. Repeat.

What the combo produces

• Infinite colorless mana
• Infinite mana artifacts you control can produce
• Infinite untap of artifacts you control