Fair settings for deaf people.

I am wondering if there is an option for deaf people that would indicate that eg.: Sion has used his Ultimate ability, because if there is not I think there should be, maybe in a form of some kind of screen border. If anyone does not agree with me, and thinks this would bring huge advantage to non-deaf players too, the setting may cause that when you are turning on this option on in-game sounds would disappear, since deaf people cannot hear anyway. Please share your opinion and upvote.
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