Zed and my current thoughts about Assassins

The problem with current assassins is that they almost have no weakness after a certain point in the game if played well. My main point maker is Zed. I've played Zed enough and well enough to know what his weaknesses and strengths are. Zed scales super hard after level 8 by acquiring just a and a . After those items he has enough damage to kill you from half to nothing. With every champion, there MUST be a weakness. With Zed, there really is no weakness if you know how to play him. Unless you just throw your shadow around every second it's up. Zed can initiate into the most dangerous situations and secure a kill with little to no consequences. While other champions that cannot instantly pop you are struggling to return poke because of mana situations, Zed is still forcing you out of lane with ease while not worrying about an escape route because of his W and his ult if need be. The same situation goes with LeBlanc. I've played LeBlanc recently and purposely stopped farming after 15 minutes, because it was easier to just get kills and help other lanes push while instilling demoralization in our opponents just by a simple combo, with no risk. This is how I currently see most assassins at the moment. High risk, little consequence. Removing the DFG in my opinion was a good move on Riots part because once a champion like Ahri, Akali or LeBlanc got it, that meant GG in mid lane, and possibly other lanes depending on map awareness and roamability.