Displacer Kitten + Lab Rats + Memory Crystal + Priest of Gix

Mana needed: {2}{B}

UB identity

Commander legal

The 4 combo pieces

How to execute it

  1. Cast Lab Rats with buyback by paying {2}{B}.
  2. Displacer Kitten triggers, blinking Priest of Gix.
  3. Priest of Gix enters the battlefield, adding {B}{B}{B}.
  4. Resolve Lab Rats, creating a 1/1 Rat creature token and returning Lab Rats to your hand.
  5. Repeat.

What the combo produces