I have a friend who is deaf. And he has a little problem with certain things, especially the ultimates with global sounds like Kled, Taliyah or Sion. I think it would be a good idea, to help people like him, adding an option to activate a small light somewhere, or a small circle with the face of the champ (Kled, Taliyah or Sion) that indicates that they have just used the Ultimate, which lasts just as long as the sound of the ultimate so deaf people can know when one of them used his ultimate and do not have that small disadvantage from other players.
Please, if you like the idea, upvote so more people and maybe riot notice this.
PD: sorry if something isnt correctly written, i am not very good at english :p