Colors can be a warning sign that something is toxic and that is the cause for this creature for quills on it can deliver a powerful venom into those that touch it. Thanks to its body being made of a crystal like substance its skin can become very sharp. Despite all the advantages it has it still gets hunted a lot by other creatures including a high number of creatures that are in the early stages of a oredeclinatio infection. Seems to be ok on that ice.