What if soulstealer vayne's color theme changed?

Currently, mythical skins are bad and they are harder to obtain compared to ultimate skins. Soulstealer vayne feels kinda meh. What if her color scheme changed colors based on what champion she kills? For example, if her most killed champion type is a fighter, change the color scheme to be orange. If she killed alot of assasins change her color scheme to be red or something. This would make her FEEL more like a soulstealer rather than a jade statue. What color would you like to see for other roles?