Ashnod's Altar + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Mikaeus, the Unhallowed

WB identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Ashnod's Altar by sacrificing another nontoken non-Human creature
  2. When the creature dies, its undying ability triggers, returning the creature from your graveyard to the battlefield with a +1/+1 counter on it.
  3. Activate Ashnod's Altar by sacrificing the creature with a +1/+1 counter on it.
  4. When the creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  5. Repeat.

What the combo produces