Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Phyrexian Altar + Stormbound Geist

WUB identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Phyrexian Altar by sacrificing Stormbound Geist
  2. When Stormbound Geist dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  3. Activate Phyrexian Altar by sacrificing Stormbound Geist
  4. When Stormbound Geist 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