Tzaangor Enlightened

Basically a super elite Tzaangor veterans that leads his underlings to battle. Tzaangor Enlightened are a special type of Tzaangor that was released as of the 8th edition of the Thousand Sons Codex along with the Tzaangor Shaman.
Overview
A unit exclusive to the Thousand Sons.
Elite Tzaangors, possessing strange feathers and elaborate horns, the Tzaangor Enlightened are truly blessed with the favor of Tzeentch. They wield ornate spears that set them above their lesser kin, some even riding upon Discs of Tzeentch. Tzaangor Enlightened can see strands of the past – foes cower in superstitious fear as the Enlightened give voice to events from their lives that no-one ought to have knowledge of.
Tzaangor Enlightened can be differentiated from the Shaman counterparts with their more ornamental helmets covered in horns and multi-colored feathers. Even their Discs look more special than the rest, as these are covered in sinister spikes and horns used to smash and hack apart unfortunate enemies.
Tzaangor Enlightened are themselves, lead by an Aviarch which is a pretty cool albeit punny name. The Aviarch are basically the squad sergeants and are even more pimped out than the regular Enlightened. Featuring his own special chest plate, bearing his own special headpiece and carrying a more ornate weapon befitting his elevated status. The Aviarchs are considered as a veteran of the Long War.