Darkglare

A darkglare is a floating, horned, one-eyed or five-eyed octopus-like demon similar to an observer. Little is currently known about them.

Affliction warlocks can call forth a darkglare to aid them in battle using the Summon Darkglare ability.

Trivia

 * The darkglare summoned by warlocks was initially described by Chadd Nervig in a forum thread as a "beholder", a reference to the iconic from  upon which observers are based. Nervig described the "beholder" as a demon very rarely seen prior to Legion, with Durumu the Forgotten being the most notable one, and at the time the beholder minion used a copy of Durumu's model. However, this seemingly contradicted Durumu's origin of being created by mogu flesh-shaping, as detailed in his Adventure Guide entry. The name of the minion was later changed to "Darkglare", and the model was updated to a completely new demonic species with little resemblance to Durumu at all.
 * Despite this, Glazer, a Vault of the Wardens boss who shares Durumu's model, is still referred to as a "beholder" by Kor'vas Bloodthorn, and the darkglare Viz'aduum the Watcher is the objective of the quest The Owl and the Observer.