Vulnerable (3.5e Equipment)

Vulnerable
The blade doesn't look unusually intimidating, but after it strikes it, and all the other weapons surrounding you, suddenly look much more intimidating.

Summary::A vulnerable weapon allows the wielder to transfer some or all of the sword’s enhancement bonus as a penalty to AC for those he attacks successfully. As a free action, the wielder chooses how to allocate the weapon’s enhancement bonus at the start of his turn before using the weapon. If he makes a successful attack, the creature gains a penalty to their AC until the beginning of the wielder's next turn.

Moderate necromancy; CL 8th; Craft Magic Arms and Armor, bestow curse; Price: Cost::+1.