He's really not hard to play at all, though.
Trust me. I've played him more than enough to know. He's an easy champion once you learn basic things like W range and all of that.
His damage without 3 shurikens is way too high to consider him hard. Unless that's nerfed a decent amount, he just is too oppressive with the mere threat of WEQ being able to do 60% or more of your health easily (It's not a hard combo to land at all). And once you land that, especially post 6 or with ignite, you single-handedly make it impossible for them to come close because you can kill them too easily then. So they have to back, then they're going to be behind in exp, meaning that your combo will do even more, and they have to use abilities to farm, meaning they'll be too low mana to do anything if you decide to dive them...
Zed just needs to not proc Electrocute with his WQE combo alone. It's two damaging abilities, not three.