Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Iron League Steed + Yahenni, Undying Partisan

WB identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Yahenni by sacrificing Iron League Steed.
  2. When Iron League Steed dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  3. When Iron League Steed enters, its fabricate ability triggers, putting a +1/+1 counter on it.
  4. Resolve the Yahenni ability.
  5. Repeat.

What the combo produces