User blog comment:Sethril/Destiny: Lore...of sorts..../@comment-166.137.252.59-20141125010722

The exo were created by Rasputin (and possibly the other warminds, if any others survived) to combat the darkness, my guess would be that they were created originally as a form of cannon fodder, or at least a way to prevent having to send any of the remaining humans into battle. Though one of rasputins grimore cards contradicts that stating that he 'cast off his shield, shook his shoulders and the billions fell off into the ash.' I take this as Rasputin sacrificing most of humanity to gain their light to defeat or at least hold back the darkness. Also, anyone with information or theories relating to the battle of Twilight Gap let me know, I'm working on a novelization of the battle, or the battle as I think it happened.