Possesed Dreadknights, are poor unwilling Dreadknights that have been possesed and are now controlled by multiple Dark Empire Mindflayers. The true heavy units of the Dark Empire, Possesed Dreadknights emit a Pained, Haunting Melody that strikes fear into the hearts of the enemy. some even say that the Burrowing Owls inside remain concious. forced to watch as they massacre their fellow owls.
Audio Credit Goes to Mr T on YT, i do not own this audio.