Yuay and the other Yu-boys are curssed since they were little the curse spredds faster when they use there magic. Yuya's curse slowly kills him turning him in to a rock that will spread it it's starte on his left hand and has spreaded to half his body. Yuto's curse makes him trans parent and will eventualy fade into nothing.Yuri's curse has flowers growing on him as of the story he can't see becasue the flowers have grown over his eyes to his wrists and right above his feet but hasen't toughed his neck so he can still breath.Yugo, he is becomeing ice I haven't decided which body parts are frozen yet.