I've done bane runs for all houses. And randomly generated classes for all roots. I've also done a challenge that I don't think I've seen anyone else do which I call the shiplocke. You swap character's builds with a character that they are shipped with (note they very rarely both have each other's progression just to make it a bit more interesting). But now I wonder does anyone have any ideas that I could try? If so (in Anna's voice) "Thanks a bunch!" If you want I can send you my shiplocke chart.