Barrenton Medic + Cathars' Crusade + Presence of Gond

GW identity

Commander legal

The 3 combo pieces

What must be in place

Presence of Gond attached to Barrenton Medic.
Barrenton Medic does not have summoning sickness.

How to execute it

  1. Activate Barrenton Medic by tapping it, creating a 1/1 Elf Warrior creature token.
  2. The Elf Warrior enters the battlefield, triggering Cathars' Crusade, putting a +1/+1 counter on each creature you control.
  3. Activate Barrenton Medic's second ability by putting a -1/-1 counter on it, untapping it.
  4. Repeat.

What the combo produces