Were there is a lot of snow, and creature can be seen, the top of its head has what looks to be a sword on it that it uses as such. When this creature is using the sword on its head it will: run, hope, leap, and other such movements stuff. They will use there sword head for fighting, fighting with each other, play fighting with each other, training to use their head sword. They mostly come out at night, and with that comes there glow, the brighter the glow the more energy they have.