You’ve studied the armor of man long enough to have a remarkable understanding of its construction – and weaknesses – and use this knowledge to your advantage.
Benefit: As a full-round action you may study a distant foe’s armor, searching closely for a weak spot. On your next turn, if you are uninterrupted, you may make a Perception check (DC 15 + the armor bonus of your target’s worn armor); you gain a synergy bonus to this roll equal to one-half (round up) the number of ranks you possess in Craft (armor). If this Perception check is successful the armor bonus of your target’s worn armor is reduced by one-half (round down) for a single attack with a bow or crossbow. Additionally, if the attack is successful, you gain a bonus to damage equal to the number of ranks you possess in Craft (armor).
The effects of this feat are limited to targets within 60-feet of your position.
Undefeatable: The Collected Feats Sourcebook, Copyright 2009 – 2010, Louis Porter Jr. Design, Inc. Undefeated, Copyright 2011, Louis Porter Jr. Design, Inc.