Basalt Monolith + Biomancer's Familiar + Karn, the Great Creator

GU 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 by putting one loyalty counter on them, making Basalt Monolith a 3/3 artifact creature until your next turn.
  2. Activate Basalt Monolith's first ability by tapping it, adding {C}{C}{C}.
  3. Activate Basalt Monolith's last ability by paying {2}, untapping it.
  4. Repeat from step 2.

What the combo produces