I'm one of those wizards who likes to keep a healthy distance from his quarry. These robes are imbued with powerful magic, but impregnable they are NOT. I can't even keep a stiff breeze out, let alone the glimmering knife claws of beasts like the wyrden cat. It's nothing BUT claws, that thing. If you do make the mistake of getting too close, just remember - the wyrden cat lives by the pierce, but it dies by the pierce as well.
