Talk:Amphis/@comment-220.255.2.57-20130409152255/@comment-78.62.130.161-20130417143231

They don't get negative armor.

30% piercing damage doesn't mean that it converts 30% of the weapon's damage into piercing, it means that it adds piercing damage equal to 30% of the weapon's base damage.

The type of damage (fire, frost, lightning, armor piercing, normal, bolt, slashing, bashing) doesn't matter in that equasion -- it is plainly treated as damage.