Ashnod's Altar + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Propeller Pioneer

WB identity

Commander legal

The 3 combo pieces

How to execute it

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

What the combo produces