Carnifex Demon + Mikaeus, the Unhallowed + Umbral Collar Zealot

B identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Umbral Collar Zealot by sacrificing Carnifex Demon.
  2. When Carnifex Demon dies, its undying ability triggers, returning it from your graveyard to the battlefield without a +1/+1 counter on it due to its replacement effect.
  3. Resolve the Umbral Collar Zealot ability
  4. Repeat.

What the combo produces