Drink a potion that will raise intelligence for a few hours, then learn whatever new spells you want. The increased intelligence will allow the character to learn more spells.
Alternatively, if you have ToB installed, you can *erase* spells from your spell book. Use this wisely!
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"Butt-kicking for goodness!" - Minsc
"Cities always teem with evil and decay. Let's give it a good shake and SEE WHAT FALLS OUT!!" - Minsc
