I cant think of anything original but i was thinking alomg the terms of "flowing with magic". This guy i technicly introduced a chapter of my story in a flashback. This is Shade, Black Heart's mentor/older brother figure the one that got murdered. He is the orignal wearer of the coat as well as the original owner of the yellow crystal he wears around his neck. The blue tendrils behind his back is manifestations of his powers that all of his speices can actually do. Its a certain kind of magic that requires using their souls.