Hardened Academic + Wingrattle Scarecrow + Yahenni, Undying Partisan

RWB identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Yahenni by sacrificing Wingrattle Scarecrow.
  2. When Wingrattle Scarecrow dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  3. Hardened Academic triggers, putting a +1/+1 counter on Wingrattle Scarecrow.
  4. Resolve the Yahenni ability.
  5. Repeat.

What the combo produces