Intrusive Whip [General]
Through many long hours of practice, you have learned how to strike the small, unarmored parts of your opponents.
Prerequisite: Weapon Finesse, Weapon Focus (whip)
Benefit: You can strike through higher degrees of protection. Add 1 to the armor and natural armor bonuses that an opponent must have to be undamaged by your whip attacks. For example, with this feat, you may damage any opponent that has an armor bonus lower than +2 or a natural armor bonus lower than +4.
Special: You can gain this feat multiple times. Each time you take the feat, double the bonus granted the previous time you took Intrusive Whip and stack them. For example, if Intrusive Whip is taken a second time, add 2 to the previous bonus of 1, resulting in an opponent needing an armor bonus of +4 or a natural armor bonus of +7 to be undamaged by your whip attacks. A fighter may select Intrusive Whip as one of his fighter bonus feats.
Normal: A whip deals no damage to an opponent with an armor bonus of +1 or higher or a natural armor bonus of +3 or higher.