As near as I can tell, he tried to play it off as 'oh, well, Asavar Kul was supposed to be the great undefeatable Everchosen, but he died, so clearly I'm better because I didn't ' except at the same time he couldn't actually BECOME the Everchosen, because the Gods didn't declare him such, and instead he had to try for calling himself the Emperor of Chaos instead, and then he managed to defeat one dwarf hold over the course of almost a century, and then...I don't remember seeing much else about him.