He's been cursed by Miztashitai, a mysterious dragon that he finds on the distant mountains.
He travels searching for Miztashitai to reverse his curse.
It usually turn into his second form to fight him
but if he's a long time in that form Miztashitai's curse will start affecting him.
it is known to be a beautiful but deadly curse because of the many sparkling crystals, although he can barely move when cursed and he's constantly getting hurt
It sometimes lefts a crystal trail.

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