Well the Hall of fame does tell you something about the strength of Iron Darts spam and thus Ulmish mages in general. Of course some is because you killed a lot of undead but it is still impressive. And with Iron Blizzard it'll get even better.
And I have to agree with above posters that Black Rose Ulm like CBM 1.92 MA Ulm is OP and should be toned down in some areas.