Suggestion: adding a timer for auto attack abilities

After playing champions like Diana and Jax recently, I have noticed it can be frustrating when you lose track of the final proc of their ultimate/passive is going off (which can be frustrating when you are using it to trade or harass). My suggestion is that you put up a timer passive for when the third strike will be ready, and when it resets and you need to auto attack two more times again. Champions such as Aatrox, Annie, Caitlyn, Kennen, Maokai, Nami, Nunu and so on all have this way or recording and I think it would do Jax and Diana good for them to have it as well. Cheers!