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-2250460-20121114194727/@comment-1683193-20130110060826

An Onyx Sentenial would stomp a Primarch. Thier main gun can blow up tanks and fortified bunkers and they can fly hypersonic. And Killerkidz,have you read the Forerunner Trilogy? The Forerunners should take this easily.