I think it's whenever he lith does his tiamats dance his scales change I think black and red just like lith. or black and some other color
"Why?" Leria's eyes became watery for the humiliation and Aran's relentless mockery. "I mean, I have silver streaks like Aunt Quylla whereas Aran only has red ones. Why am I less talented then?"
Duke Marth was one of the beast Healers of the Kingdom and one of the leading figures in the Light Department. On paper, there was nothing that he couldn't treat.