Suggestion: Champion Tagging :: Tag Searching

So I've had the thought before, and especially in light of the newer system, being as beautiful as it is, it does seem to show less champions on screen at a time when in champion select.

Sometimes from lack of planning of what I want to play, or sometimes from panicking on my position, or counter picking, I will come across a point where I panic and don't know who to play, or more especially can't find them, usually leading to a slam pick of whoever can possibly fit that lane that I see first.

To help alive this problem to an extend, may I suggest the ability to self tag our champions under Profile > Champions. By which I mean, for example I might head over to my owned champion pool, tag Ahri, Ziggs and Viktor with "Mid." Then during champion select search "Mid" and have the champions I tagged as such show up.

Now I know this already exists to a degree, searching "Tank" might bring up Nautalis, Malphite, and Trundle, whereas searching "Mage" might bring up Lux, Zyra, and Annie. However being able to tag all six of these champions as "Support," and have them all appear on the same search might be more beneficial.

Finally as well, this of course allows for more personalization. We could tag champions for more specific situations, such as "AD Mid," "AD Counter," or "Zed Counter." Etc.

Thoughts?