One For All - adding outline?

Hi! As you may know, one of the problems with one for all is that when a difficult champion is selected it has a high chance of ending in a terrible curbstomp, because up to 4 players in the team may have never played it before.

So, I have an idea: what about adding a green outline in champ select to champs owned by your whole team and a red one to champs only you have? This way you'll at least know when that Azir pick will be ok or is going to backfire horribly...