Crystalline Crawler + Hardened Scales + Mikaeus, the Lunarch + Pemmin's Aura

GWU identity

Commander legal

The 4 combo pieces

What must be in place

Mikaeus does not have summoning sickness.
Pemmin's Aura attached to Mikaeus.

How to execute it

  1. Activate Mikaeus' second ability by tapping it and removing a +1/+1 counter from it, putting two +1/+1 counters on each other creature you control.
  2. Activate Crystalline Crawler's first ability twice by removing two +1/+1 counters from it, adding {U}{U}.
  3. Activate Pemmin's Aura by paying {U}, untapping Mikaeus.
  4. Activate Mikaeus' first ability by tapping it, putting two +1/+1 counters on it.
  5. Activate Pemmin's Aura by paying {U}, untapping Mikaeus.
  6. Repeat.

What the combo produces