Coveted Jewel + Elvish Regrower + Hashaton, Scarab's Fist + Mind Over Matter

GWUB identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Coveted Jewel by tapping it, adding {U}{U}{U}.
  2. Activate Mind Over Matter by discarding Elvish Regrower.
  3. Hashaton triggers, causing you to pay {2}{U} to create a tapped token copy of Elvish Regrower that is a 4/4 Zombie.
  4. When the Elvish Regrower token enters the battlefield, it triggers, returning Elvish Regrower from your graveyard to your hand.
  5. Resolve the Mind Over Matter ability, untapping Coveted Jewel.
  6. Repeat.

What the combo produces