Basalt Monolith + Heartstone + Karn, the Great Creator

C identity

Commander legal

The 3 combo pieces

What must be in place

Basalt Monolith does not have summoning sickness.

How to execute it

  1. Activate Karn's first loyalty ability, causing Basalt Monolith to become an artifact creature until end of turn.
  2. Activate Basalt Monolith's first ability by tapping it, adding {C}{C}{C}.
  3. Activate Basalt's Monolith's last ability by paying {2}, untapping it.
  4. Repeat.

What the combo produces