Dross Scorpion + March of the Machines + Prototype Portal

U identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Prototype Portal by paying {0} and tapping it, creating a token copy of the artifact land.
  2. The artifact land token 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 zero or less toughness.
  3. Dross Scorpion triggers, untapping Prototype Portal.
  4. Repeat.

What the combo produces