Adding a new "feat" system.

So for everyone who plays or played World of Tanks knows in that game there are rare or even ultra rare medals that can be obtained if you perform exceptionally well in a game. League can add a similar system that rewards players for pulling off insane plays or feats. For example : getting a Pentakill without any assistance from team and survives. A specific medal or banner or ribbon that looks dope will be put on a player's profile and when other players see that profile they will recognize what feat this guy has achieved before. The reward can have very cool names, like a pentakill without any assistance from team and lives can be "1v5"(literally) . Or an extremely rare feat can be "1v9" and requires the player to pull off a victory when enemy gets first tower, all teammates started with a death except yourself starting with a kill or assist, and at the end of the game your damage done to champions is more than double the second highest damage done on your team(I know people can 5 man premade to try to farm this one so just simply require the fact that it can only be obtained when playing solo) . For supports or top laners it can be "Wombo Combo" where you land a 5 man hard cc on enemy team and your team gets the ACE within 5 seconds without anyone dying on your team. The feats can go on and on, there are so many possibilities! Of course it wouldn't be that complicated or specific but you get the point. The requirements can just be bullet points. Also don't confuse this system as an achievement system, feat is not achievement. Achievements can be long term goals like leveling up to level 100 or getting master. Feat is when you did something crazy in just one game or one moment that turned the entire game around or you played exceptionally well that is worth remembering or showing off. A player can be bad at ranked games in general but maybe one day does something like a challenger player in a game. Without the system that 1v5 pentakill without any assistance craziness will just be another normal game that ends with a victory or defeat in the match history, so I really wish Riot can create some memorable moments for the players. As time goes on the rare feats can pile up(if had multiple "1v5" feats it'll just display "1v5"(#of times)) and show what a player has done in league of legends that's outstanding. I don't see any negative impact it can have on the game since it requires the player or players(there can be team or premade group feats too like winning from a 15k gold deficit) to perform exceptionally well and not trolling like kill a total of 30 wolves in one game. TL;DR Riot can add a new "feat system" that makes crazy plays or feats from a game more significant and memorable without impacting the gameplay too much and make each player more unique.