The tip of your weapon pierces both the body and the spirit.
Prerequisite(s): Weapon Focus with piercing weapon.
Benefit(s): When you deal damage with a melee attack with a piercing weapon to an opponent you have already damaged this round, you can also reduce the value of that target’s spell resistance or energy resistances by 1 until the start of your next turn. This reduction stacks with itself.
Pathfinder Player Companion: Martial Arts Handbook © 2018, Paizo Inc.; Authors: Thurston Hillman, Mikko Kallio, Jacob W. Michaels, Matt Morris, Daniel Reed, Mikhail Rekun, Mark Seifter, and Jeffrey Swank.