Type: General
Source: Dragon #313
When you strike a vulnerable foe, you instinctively attack in ways that can significantly slow your enemies.
Prerequisite: Str 13, Dex 15, base attack bonus +4.
Benefit: When you use a natural weapon to make a successful attack while flanking, attack of opportunity, or attack against an opponent who is stunned or prone, you may choose to deal Dexterity damage instead of normal damage. Roll the damage for the attack normally; the result is the DC for the target's Fortitude save against the effect. A creature that fails the Fortitude save takes id4 points of Dexterity damage. Success negates the damage. You must indicate your intention to use this feat before you roll damage.