The Church of Shadows was a sect of the Forgotten Shadow religion formed with the intent of uniting willing worshippers of the Forgotten Shadow into a fully organized religion, intended to establish and enforce Shadow worship throughout all of the lands currently controlled by the Forsaken and eventually all of the Eastern Kingdoms, by any means necessary. It's members were primordially Forsaken Shadow Cultists, but it also featured a few other branches such as a military branch of "Lightslayers", warriors and rogues dedicated to eliminate Light Worship wherever they may find it, a branch that accepted Necromantic practices when not used to raise more mindless servants (I.e for healing and freeing those controlled by the Scourge).