Freed from the Real + Liquimetal Coating + Steelswarm Operator

U identity

Commander legal

The 3 combo pieces

• Freed from the Real
• Liquimetal Coating
• Steelswarm Operator

How to execute it

1. Activate Liquimetal Coating by tapping it, causing Freed from the Real to become an artifact.
2. Activate Steelswarm Operator's second ability by tapping it, adding {U}{U} that can only be spent to activate abilities of artifacts.
3. Activate Freed from the Real by paying {U}, untapping Steelswarm Operator.
4. Repeat from step 2.

What the combo produces

• Infinite blue mana that can only be spent to activate abilities of artifacts
• Infinite blue mana that can only be spent to cast artifact spells