in game emote idea

so riot is getting increasingly more attracted to the animated icons of special events. the worlds team emotes and champion mastery emotes. but i have seen so many mastery 7 gangplanks that claimed to be "mains" when they had the barest concept of what it meant to be a gangplank main down. (hold your press r for KS jokes plz)

this can be attached to any amount of champions. its easy to get mastery 7 on some champs. but its hard to TRULY master them. so i thought about having a ingame emote where after you reach a certain win rate with a champion after a set amount of games (somewhere above 50 i think) you get this animated icon that goes with the champion and a memorable part of the champions theme song. NATURALLY this means that it should be independent of the mastery system IE; even if you (somehow) dont even have mastery 4 once you played 50 games with this champion and maintained a . . .say . . . 60% win rate (in ranked only?) you get this emote to use instead. now how to go about being able to switch between it and a normal mastery emote i dont know how you would do that unless you did it like the worlds things where having it as a icon changed it.

thoughts? opinions?