So in my game I got an adept who has Killing Hands with the Elemental Effect- Sound. He likes the ignoring armor. He also has some Mystic Armor, and is of the opinion that it would still work against such an attack. He said this when I joked I should hit him with the same thing.
He's wrong, of course. Mystic Armor is just extra armor points that stack. My question is more of a curiousity in regards to something like Orthoskin. It's armor, true, but it's also your skin. Also feel free to dwell on the Mystic Armor/Elemental Sound stuff. I'm sure there could be good arguments for why the MA should work all in all...
Thanks in advance!