Kok-Log

Born from mystery, Kok-Log is a perfect demon who appeared almost out of no-where around 2000 AC. His main goal is to destroy all who oppose him and only few can boast of even touching him and few can boast of even seeing him, as he is always holed up in his demonic strongholds. He currently resides in Old Angmar after receiving a wound from Chuckles the Knight in the eye.

Notable sightings
Kok-Log is only usually seen when a major battle is occurring, he usually runs in and goes berserk and killing all. His first sighting was in 2078 AC, when the Dwarven Clans of Rhodoks and Mount Cap marched on the Gak capital city of Varum, where they had been replaced by demons. The demons sallied outside the mountain gate with Kok-Log at the rear commanding them before running in and killing hundreds of Dwarves. He was injured by an unknown warrior who managed to make him retreat and the horde of demons The warrior is unknown to this day. As for Kok-Log, he would not be seen until up to 3500 AC

Here is some other major sightings.
 * Kok-Log made a brief appearance in the first battle for Crossroads in 3678 AC, when the Crossroads were being attacked by Orc cultists lead by Kok-Log. Crossroads only managed to hold them off with help of the Dwarves and their technology. Kok-Log was driven back to his realm.