Cunning Strike (3.5e Feat)
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Cunning Strike [General, Maneuver]
Benefit: You may choose to make only a single attack with your unarmed strike or a light or one-handed weapon, that attempts to strike where it hurts most. You use your Intelligence modifier for the attack roll, but the weapon's critical threat range is doubled and the critical multiplier increases one step. For example, a dagger becomes a 17-20/×3 weapon during a cunning strike. Cunning strike does not stack with the Improved Critical feat or with the keen weapon enhancement.