User blog comment:James12708/Reapers VS. Forerunners VS. Angels from Darksiders VS. Humanity from Halo VS. Council and humanity from Mass Effect VS. Imperium of Man/@comment-50.80.96.33-20130205234148/@comment-1683193-20130207063611

Also, the IoM is the only race in this that actually poses a threat to the Forerunners. All the others would get soloed by individual IoM and Forerunner ships.