Soooo, as to who is he:
Miners digging for magically infused crystals found a cavern, buried deep below the surface. In that cavern was a sigil guarding the entrance further into the cave. Mages have been called in to see if it could be broken and to find out what's inside. The price they paid was great. The seal was protecting a tomb of a king from ancient times who achieved immortality through experiments with magic that left his body scarred. After ruling for a very long time, he found life more and more boring and started going insane. His immortality turned out to be his greatest curse. He tried to reverse the spell s that granted him eternal life, but after many attempts his mind broke and the magic he was working with burst into his brain and gave him the power to control other people's minds upon touching them also making him even more insane from the physical pain he now felt at all times. Furious with his helplessness he ordered to summon the greatest minds in his vast empire, he penetrated their heads one by one and after they provided to be no use to him he killed them. Fear struck all men of science and mages living in his lands. They devised a plan to lure him into a cave deep inside earth and ward the entrance with powerful spells that siphoned the magic from everything inside the den, one of them volunteered to sacrifice himself and lead him into the trap under pretence of finding an artifact that will lift the emperor's immortality. The plan worked, and a group of warlocks crafted a net of enchantments trapping the king inside, before the seal started working at full pace putting him in a state of torpor as there was not enough magic to keep him alive, he fought the hero who lured him into the trap, a skillful warrior and magician though very capable in combat was no match for the emperor, however before his death he managed to burn Noueons right arm. But it wasn't enough to kill him, he stayed in magically induced coma until the seal was now broken. His mind sparked with magic and he woke up and dispatched of the ones that broke him out of his eternal prison. Noueon set out once again with his only purpose being to end his life, he now looks for both heroes and villains to find the one that is powerful enough to put him down, this time forever.
TL;DR He can completely control the minds of creatures upon touching them and also casts out an aura that imposes emotions upon those inside it's range who don't have a trong enough will to combat it's effect. He's also skilled in melee, wielding two long daggers.