Kayn bugfixes and buffs comin in boys.
So, riot did admit in the dev forums that shadow assassin has a MAJOR bug that not only screws up his damage, but also fails to amp duskblade or triforce. These will be huge when they get done. It will be like a more stronger khazix passive that literally applies on everything. He wil be a hard scaling assassin.
...aaand they are planning to buff him to be equal as darkin. Hope they don't overdo it since I am loving his playstyle.