Barrenton Medic + Necrotic Ooze + Niv-Mizzet, the Firemind + Wizard Class

WUBR identity

Commander legal

The 4 combo pieces

What must be in place

Wizard Class is level three.
Necrotic Ooze does not have summoning sickness.

How to execute it

  1. Activate Necrotic Ooze using Niv-Mizzet's ability by tapping it, causing you to draw a card.
  2. Wizard Class triggers, putting a +1/+1 counter on Necrotic Ooze.
  3. Activate Necrotic Ooze using Barrenton Medic's second ability by putting a -1/-1 counter on it, untapping it.
  4. Repeat.

What the combo produces