Ambitious Aetherborn + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Phyrexian Altar

WB identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Phyrexian Altar by sacrificing Ambitious Aetherborn.
  2. When Ambitious Aetherborn dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  3. When Ambitious Aetherborn enters, its fabricate ability triggers, putting a +1/+1 counter on it.
  4. Repeat.

What the combo produces