Amoeboid Changeling + Malcolm, Keen-Eyed Navigator + Niv-Mizzet, the Firemind + Quicksmith Genius

UR identity

Commander legal

The 4 combo pieces

What must be in place

You have a way to draw a card.
Amoeboid Changeling does not have summoning sickness.

How to execute it

  1. Activate Amoeboid Changeling's first ability by tapping it, causing Niv-Mizzet to gain all creature types until end of turn.
  2. Draw a card.
  3. Niv-Mizzet triggers, dealing 1 damage to an opponent.
  4. Malcom triggers, creating a Treasure token.
  5. When the Treasure enters the battlefield, Quicksmith Genius triggers, causing you to loot.
  6. Repeat from step 3.

What the combo produces