Cathars' Crusade + Devoted Druid + Splinter Twin

RGW identity

Commander legal

The 3 combo pieces

What must be in place

Splinter Twin attached to Devoted Druid.
Devoted Druid does not have summoning sickness.

How to execute it

  1. Activate Devoted Druid by tapping it, creating a token copy of it with haste.
  2. When the Devoted Druid token enters the battlefield, Cathars' Crusade triggers, putting a +1/+1 counter on each creature you control.
  3. Activate the nontoken Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
  4. Repeat.
  5. Once you have infinite Devoted Druid tokens, you may tap them to get infinite {G}.

What the combo produces