Void Demons

Void Demons are the most powerful and numerous of the different demon types. Very rarely ever seen in the Material Plane they are focused on the Desolate Planes and defeating the forces there to further invade the Material Plane.
Void Demons are beings of immense power and even their weakest forms are more than a match for most of the Material Plane's most experienced heroes. They are cunning and crafty with their only weakness being their chaotic and wild nature, leaving their attacks vague and unorganized.
There is little reported data on Void Demons in the Material Plane and have only been sighted a couple times throughout all of history. The most notable difference in Void Demon's compared to normal ones are the starry and deep black skin they have and even the most powerful Demon Slayers will state should you ever see one it is highly recommend to flee and do not engage.