Skeletons

Skeletons are both a normal and not-so-normal thing. When they're in a body and surrounded by meatstuff, that's pretty normal. When they're no longer surrounded by meatstuff, that's also pretty normal. When they're no longer surrounded by meatstuff but still moving and trying to kill people, that's much less normal. When they're no longer surrounded by meatstuff, still moving and trying to kill people, and have weird crystals growing out of them, that's extra super not-normal.