As for balance, some of the spell colleges are pretty useless, while others are ridiculously overbalanced. That one spell which stops time...? You can get that relatively early in the game, and it blows just about any enemy away.
Congeal Time you mean? Otherwise the spell which stops time is Tempus Fugit and it's the last in the college. If it's Congeal Time, then higher monsters are invulnerable to that.
You might check Gamebanshee if you can't remember the spells <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />.
Spick, go
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