Ashnod's Altar + Bhaal, Lord of Murder + Crystalline Crawler + Persistent Specimen

BRG identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Ashnod's Altar by sacrificing Persistent Specimen, adding {C}{C}.
  2. When Persistent Specimen dies, Bhaal triggers, putting a +1/+1 counter on Crystalline Crawler and goading it.
  3. Activate Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding {B}.
  4. Activate Persistent Specimen by paying {2}{B}, returning it from your graveyard to the battlefield tapped.
  5. Repeat.

What the combo produces