Achievement Skins

I thought about it for quite a while and believe we need this now. I dont know f someone else ever posted about this ( probably ) but I think Riot should release achievement skins. The only good idea i found was to make the dragonslayer skins an achievement skin you would get by killing 50 times ( or more ) the dragon with that champ in particular. Another concept i thought of was that since champion masteries are comming out soon, they could make it that at tier 5 you get a special skin for that champion, It would be awesome.

Hope this will give ideas to skin developers and that it will influence riots new ideas for skins Ty - MsrUnrealice