Basalt Monolith + Clock of Omens + Grim Monolith + and 2 others

Mana needed: {2}

C identity

Commander legal

The 5 combo pieces

What must be in place

You control at least five additional artifacts.

How to execute it

  1. At the beginning of your upkeep, Karn triggers.
  2. Holding priority, activate Strionic Resonator 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 Clock of Omens by tapping Basalt Monolith and Grim Monolith, untapping Strionic Resonator.
  5. Activate Basalt Monolith's second ability by paying {3}, untapping it.
  6. Activate Grim Monolith's second ability by paying {4}, untapping it.
  7. Repeat from step 2.

What the combo produces