Karn, Legacy Reforged + Karn, Silver Golem + Lithoform Engine + Voltaic Construct

Mana needed: {3}

C identity

Commander legal

The 4 combo pieces

What must be in place

Lithoform Engine does not have summoning sickness.
You control at least one additional artifact.

How to execute it

  1. At the beginning of your upkeep, Karn, Legacy Reforged triggers.
  2. Holding priority, activate Karn, Silver Golem by paying {1}, causing Lithoform Engine to become an artifact creature until end of turn.
  3. Activate Lithoform Engine's first ability by paying {2} and tapping it, copying Karn, Legacy Reforged's ability.
  4. Resolve the copy of Karn, Legacy Reforged's ability, adding {C} for each artifact you control that cannot be spent to cast nonartifact spells.
  5. Activate Voltaic Construct by paying {2}, untapping Lithoform Engine.
  6. Repeat from step 3.

What the combo produces