nerf and rebalance

the champions are unbalance and everyone takes advantage of them warwick has too much lifesteal, yasuo can 1 v 5, yi can 1 v 3. these are champions that are commonly abused and if you are going to nerf others why not give them a nerf. this is short sweet and to the point also no one will probably read this but it's disgusting. warwick has so much lifesteal he can literally out heal damage done to him. I'm sure other people who are not biased have ran into this exact problem. if you agree or disagree place your comments in the bottom also if there are any other champions that could use a rework bring them to light in the comments.

P.S. if you don't have a valid reason to counter these statement which are facts then you rebuttal is unwelcome.