He can dodge your skillshots with e, has a shield to outplay trades, if you can even proc it past his windwall. His shield comes back pretty quickly giving you a pretty small window to use an opportunity which yas players don't generally give you. Can sustain with a dorans / lifesteal. Has no mana resources. Very easy farming. Strong all parts of the game. Get's crit easily of some inexpensive items. Takes a lot of mental energy to lane against and predict what a yas is going to do.
I basically perma ban him if I get a ban. Is there any reason he's not getting more of a nerf, in particular the early game?