yi nerf on aram or what?

Yi is the utlimate champ on aram i have more than 500 games on aram every time a yi exist at a team he finish game with more than 30 kill and every single game have at least 1 penta kill. I making this post to see what people thing about it and also because at patch 3.12 riot make a big step to make aram more balanced and interesting game mode. P.S. : Sorry for my English but it is not my mother language.
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