Carnifex Demon + Mikaeus, the Unhallowed + Yahenni, Undying Partisan

B identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Yahenni 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 Yahenni ability
  4. Repeat.

What the combo produces