[I'd say allive has a great, but very basic, idea. There is so much that could be done and it would be more interesting to have your single favorite spell advance farther, I may be able to type well or not but I can type certain things better than others, tis the same area of skill isn't it?(this to be a differing possibility/metaphor thingy to the rapier/broadswords one.)
[There are probably loads of ways this idea could be a successful and FAIR idea but you haven't quite gotten it yet Allive. (

It's 3am atm and it's not actaully Wodaj but his twin Modnar.) Actaully another idea could be that the spell is customisable to the caster for their purpose, for example, a person may choose speed and sacrifice power or vice-versa or simply change the way the spell looks when cast. (Though of course any of what I've just suggested would probably mean either a lot of tinkering or a much later stage of the game.)]