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

What the combo produces