If you're in 3.5, don't forget Touch of Idiocy! Sor/Wiz 2, 1d6 penalty to INT, WIS *and* CHA, touch attack, no save, 10 minutes/level. It doesn't stack with itself, but if your Sorcerer has it, he can probably cast it 4 or more times in a row to get the best rolls, which should get your...