Altar of Dementia + Arcbound Fiend + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight

WB identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Altar of Dementia by sacrificing Arcbound Fiend.
  2. When Arcbound Fiend dies, its modular ability and persist ability trigger.
  3. Resolve the modular trigger, putting Arcbound Fiend's +1/+1 counters on another artifact creature.
  4. Resolve the persist trigger, returning Arcbound Fiend from your graveyard to the battlefield. It will not have a -1/-1 counter on it due to its modular ability.
  5. Resolve the Altar of Dementia ability.
  6. Repeat.

What the combo produces