Earthcraft + Lab Rats + Matzalantli, the Great Door // The Core + Rootpath Purifier

BG identity

Commander legal

The 4 combo pieces

What must be in place

You have at least five permanent cards in your graveyard.

How to execute it

  1. Activate The Core by tapping it, adding at least {B}{B}{B}{B}{B}
  2. Cast Lab Rats with buyback by paying {4}{B}, creating a creature token and returning Lab Rats to your hand.
  3. Activate Earthcraft by tapping the creature token, untapping The Core.
  4. Repeat.

What the combo produces