Crosis's Catacombs + Haru, Hidden Talent + Retreat to Emeria

WUBRG identity

Commander legal

The 3 combo pieces

How to execute it

  1. Play Crosis's Catacombs.
  2. When Crosis's Catacombs enters, it and Retreat to Emeria trigger.
  3. Resolve the Retreat to Emeria trigger, creating a 1/1 Kor Ally creature token.
  4. When the Kor Ally enters, Haru triggers, earthbending Crosis's Catacombs.
  5. Resolve the Crosis's Catacombs trigger from step 2, causing you to sacrifice it
  6. Haru triggers, returning Crosis's Catacombs from your graveyard to the battlefield.
  7. Repeat from step 2.

What the combo produces