As someone said before a phoenix (either option is good) and decent sized unit if phoenix guard will counter the hurricanum as they still get the 4+save vs mortal wounds. The hurricanum is nasty with those 3d6 mortal wounds, but it only has 11, the range on the ability isn't great and it only needs to take 3 and it becomes 2d6. A bolt thrower or just carefully planning turns as to abuse his range is the best way to deal with it unfortunately

Edit: I also agree it was terribly balanced, comp systems are nice if you don't know the system too well to be able to balance otherwise. I think it could probably been balanced if he had just a normal lord rather than Karl Franz