Deorc is very smart and crafty. He is intimidating and persuasive, able to talk almost anyone into doing anything. His one weakness is that he can be distracted rather easily and be made to leave holes in his plans. He also has a highly sarcastic sense of humor.
Deorc controls the Darkthings, most of whom serve him willingly, and resides in a dark underground base just outside of Ninjago City.
Deorc has dark hair, dark eyes, and gray skin, but those are usually hidden by a hood and cloak.
Too spoiler-ridden to be written at the moment. Here's the story he's going to be in: The Light Meets the Dark.