Altar of Dementia + Chaos Spewer + Mikaeus, the Unhallowed

BR identity

Commander legal

The 3 combo pieces

How to execute it

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

What the combo produces