Lithoform Engine + Panoptic Mirror + Turnabout

U identity

Commander legal

The 3 combo pieces

What must be in place

Artifacts you control can tap to produce at least {2}.

How to execute it

  1. At the beginning of your upkeep, Panoptic Mirror triggers.
  2. Holding priority, activate any number of artifacts you control by tapping them, adding at least {2}.
  3. Activate Lithoform Engine's first ability by paying {2} and tapping it, copying Panoptic Mirror's trigger.
  4. Resolve the copy of Panoptic Mirror's trigger, casting a copy of Turnabout without paying its mana cost.
  5. Resolve the copy of Turnabout, untapping all artifacts you xontrol.
  6. Repeat from step 2.

What the combo produces