Chromatic Orrery + Filigree Sages + Karn, Legacy Reforged + Lithoform Engine

Mana needed: {2}

U identity

Commander legal

The 4 combo pieces

What must be in place

You control at least two additional artifacts.

How to execute it

  1. At the beginning of your upkeep, Karn triggers.
  2. Holding priority, activate Lithoform Engine's first ability by paying {2} and tapping it, copying Karn's ability.
  3. Resolve the copy of Karn's ability, adding {C} for each artifact you control that cannot be spent to cast nonartifact spells.
  4. Activate Filigree Sages by paying {3}, untapping Lithoform Engine.
  5. Repeat from step 2.

What the combo produces