Cathars' Crusade + Devoted Druid + Ghave, Guru of Spores

WBG identity

Commander legal

The 3 combo pieces

What must be in place

Ghave has at least two +1/+1 counters on it, or there is a +1/+1 counter on another creature you control.
Devoted Druid does not have summoning sickness.

How to execute it

  1. Activate Devoted Druid's first ability by tapping it, adding {G}.
  2. Activate Ghave's first ability by paying {1} and removing a +1/+1 counter from a creature you control, creating a 1/1 Saproling creature token.
  3. When the Saproling enters the battlefield, Cathars' Crusade triggers, putting a +1/+1 counter on each creature you control.
  4. Activate Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
  5. Repeat.

What the combo produces