Talk:Mershark/@comment-37532776-20181225084050/@comment-10429980-20181225123119

Actually in her case its not about her mana protecting you, its that her teeth have similar properties to realm silver. Namely they can't wound human bodies, instead inflicting wounds on their mana network and causing mana to leak out instead of blood. In practice it might look as if her teeth pass right through you, though you would still feel a pleasurable throbbing as your mana flows out from the ethereal wounds.

Course since they do feed on animals I assume they can turn off this aspect of their teeth if they need to. Either that or killing their food is a more involved affair (i.e. weaken them with their teeth, then kill them with their hands).