Altar of Dementia + Mikaeus, the Unhallowed + Persistent Constrictor

B identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Altar of Dementia by sacrificing Persistent Constrictor.
  2. When Persistent Constrictor dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  3. Resolve the Altar of Dementia ability.
  4. Activate Altar of Dementia by sacrificing Persistent Constrictor.
  5. When Persistent Constrictor dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  6. Resolve the Altar of Dementia ability.
  7. Repeat.

What the combo produces