Stannis claims to be King, but unlike Daenarys, Renly, Tommen and Joffery, he has no King’s Guard. Could that be because the constant surveillance would deprive him of the alone-time that he needs to assume his true Mantis form? We’re told that his daughter has a skin disease called greyscale, but that could be a cover up for genetic defects caused by interspecies breeding. Remember that time Stannis was injured in battle? No, you don’t, and that may be due to his being protected by a powerful insectoid exoskeleton.