Pain Touch

Pain touch enables the caster to touch an opponent in such a way as to induce extreme pain. The spell works if the caster touches any exposed part of an opponent's body. The caster must be within arm's length of the opponent for the spell to work. The spell requires a normal attack roll.
The pain causes no damage, but for the next 1-4 rounds, the victim will be -2 on his chance to hit and his AC is worsened by 2. The caster can cast the spell and touch the victim in the same round. Pain touch is only effective on human, demihuman, and humanoid opponents.

[Complete Wizard's handbook]

School: Necromancy
Level: 3
Rarity: Uncommon

Range: Touch
Components: V, M
Duration: 1 round/level
Casting Time: 3
Area of Effect: One creature
Saving Throw: None

Material Components:
a needle and the finger from a scorched glove