[quote=@ArenaSnow]
Right then, half-sane Runic Mage and a professional demon summoner coming right up...
[/quote]

Are these two separate characters, or one?
The more magic schools you know, the less powerful you are in each. If you know only destruction, for example, you can be a master in that. But if you know destruction, alteration, necromancy and mysticism, then you're probably just novice or mid-level in all of them.