Impregnable Mask

You store vital essence in your mask, making it hard to kill you with ordinary weapons.

Prerequisite(s): Bonded Mask, base attack bonus +4.

Benefit(s): You shift some of your vital essence into your bonded mask, making it hard to harm you while the mask is whole. While wearing your bonded mask, you gain DR 2/adamantine, which is reduced to DR 1/adamantine if your bonded mask has the broken condition.