[Kaiser2]

Just a suggestion, and I'm sure quite a few people would disagree with me, but here goes:
Instead of just double clicking or typing "/cast <spellname>" maybe instead you can replace it with actual text, like, if you buy a spell book, and you read it (no way of failing it, or maybe if you fail you can't ever read it again, but if you succeed, you can read as many times as you want.) inside it'll have a series of words, like a poem or rhymes, and when a player chats that, then he'll cast the spell, this way, you can teach other players spells, but of course they need the wizardry skill and the right level in magic or wisdom to use it, here is a suggestion for detect monster spell:

"Stay rotation, stop your storm! Spirit, stand, and show your form!"

Or Banishment:

"Out of the mist you came riding Because your master has told you so, To bribe and to steal And to ignore all appeal, So back into the mist you shall go!"