I like this idea
edit (to explain myself): I like this idea because at the end game, Necros seem to lose their well-roundedness and are forced into the pure spell DPS role, something that wizards surpass them in, and they become a B-team kind of class, where there is a clear and definate better class than necros in most end game situations. Area's where necromancers cannot mez mobs or areas where there is no undead are reassign the focus of necromancers from utility to straight DPS, and then they are simply outclassed by enchanters and wizards whos primary focus overlaps with the necromancers well-roundedness, and they become less-desired for a group because other classes can perform the necromancers jab far better than the necromancer can. To solve this problem, either necromancers can be completely overhauled (which i dont think is possible without a major overhaul of all class focus), or the areas where necromancers are overlapped can be balanced by giving them excepional power in skills that are less used, but where their focus can surpass a more single-minded class. For example, having a better high end charm than enchanters that only works on undead. This would not make enchanters any weaker, but would only make the necromancer stronger in a similar ability but one that can only be used on a smaller portion of mobs. As for mesmerize we have been given a 65 spell that is an improved mez, which I think seriously helps to balance the necromancer against the enchanter in terms of end game usefullness but I still think the gap is too big, and even moreso with wizards, who provide a much larger amount of damage and DPS than necros, even though necros are often forced into the same role that wizards play. Is there a solution for that problem? I haven't thought of one yet, and I'm not sure if there is one, but the gap exists and its a problem for necromancers.