March of the Machines + Nick Valentine, Private Eye

U identity

Commander legal

The 2 combo pieces

What must be in place

You have a way to kill an artifact creature you control.

How to execute it

  1. Kill an artifact creature you control.
  2. Nick Valentine triggers, creating a Clue artifact token.
  3. The Clue enters the battlefield as a 0/0 artifact creature due to March of the Machines, and dies as a state-based action due to having 0 toughness.
  4. Repeat from step 2.

What the combo produces