Harbingers are beings of great power who serve under Dominus Xin directly. They are generally hand picked by Xin himself and are endowed with divine boons. They tend to work in small groups and are tasked with preparing worlds for invasion by any means necessary. In the hierarchy of the Xinivian Empire, they are somewhat removed since they are only required to obey commands from the Dominus. Harbingers have approximately the same level of authority as Exarchs.