Agony Touch( Ghostwalk, p. 28)
Choose one physical ability score (Strength, Dexterity, or Constitution). When you touch a creature, you can deal damage to this ability score.
Corrupting Touch (Gh) , CHA 11,
Shriveling Touch (Gh) ,
You can make a touch attack that deals 1d4 points of temporary ability damage to the selected ability score of the target. When you are manifested fully or attacking incorporeal opponents, you add your Strength modifier to attack rolls. When you are incorporeal, you add your Dexterity modifier to attack rolls. If the attack scores a critical hit, the damage is doubled (ghosts are not subject to critical hits). Only one kind of damage or effect from the path of the corrupter applies from each attack. You may use this attack once per day per character level.
You do not have to use this ability when you touch another creature, and creatures that touch you do not take this ability damage.
You can gain this feat multiple times. Its effects do not stack. Each time you take this feat, it applies to a different ability score.
A ghost's touch attack normally deals no damage.