Why Yasuo, Vayne, Lee Sin, and Riven are always being monitored.
I realized today why the "Outplay" Champs are always monitored and only changed slowly.
It is because while people (unrightfully in my opinion) complain about their kits, they are undoubtably hard champions.
And it is for this reason Riot doesnt want to change their kit nor do any MAJOR changes.
Although i wasn't there 
on release had a 25% winrate. And from my understanding it was because SHE WAS TOO DIFFICULT WITH TOO LITTLE OF A REWARD FOR LEARNING.
Quite simply Riot likes their kits they are UNDENIABLY very very well flowing kits that works well with each ability. So Riot needs to balance these champions carefully in order to not make them too much drastically more easy or difficult or different. Or else another Syndra may happen, with a low OR HIGH winrate.
