Ashnod's Altar + Crystalline Crawler + Mikaeus, the Unhallowed

B identity

Commander legal

The 3 combo pieces

How to execute it

  1. If Crystalline Crawler has a +1/+1 counter on it, activate its first ability by removing a +1/+1 counter from it, adding one mana of any color.
  2. Repeat step 1 until Crystalline Crawler has no +1/+1 counters on it.
  3. Activate Ashnod's Altar by sacrificing Crystalline Crawler, adding {C}{C}.
  4. Crystalline Crawler dies, triggering its undying ability, returning it to the battlefield with a +1/+1 counter on it.
  5. Repeat.

What the combo produces