Leblanc
I don't play leblanc and one reason is I just am not great and remembering where I am blink and with skill or ult, I thought it would be kind of cool if she changed colors depending on what you have done. W forward and you change to a more red color, then ult turn green, w fades but ult is up more yellow. Kind of like the Raven from teen titans in the mirror her different personalities represented by different colors. The different combinations of blink would change her color depending order you used them. I doubt it would really help a low tier player like me but I think it would be cool