For 4 more points my army gets skullfu... I mean skulltaker. Not worried at all ;)
But as for non named characters, he's pretty dirt hard, lack of ward save might harm him though as I am seeing a lot more KB in armies these days.
Don't, after rolling that final 1 too many, flip out, climb up on the table and jump up and down on your opponent's models screaming 'APOCALYPTIC BARRAGE, MOTHERFUCKER!!!'.