I've filled out everything but the history and techniques so far. Not sure if I really need to think about techniques, as Ahrazan isn't a magic user or anything of the sort. He just sorta... brawls. 
For his birthplace, I chose the Gestalt Hills. There's no info on that yet; I was curious if you had anything in mind. 
Oh, and in case it wasn't clear in having separate entries for his helm and armor; his helmet is not subject to the same "second skin" nature as his armor. It is not a part of the set and is fully removable (although was crafted in much the same aesthetic).