the only champion whose design bothers me

So I've always felt that there's something wrong with one of the mages kits, that being Leblanc. She seems to be the only champion with no drawback holding her back from going crazy every chance she gets. So Leblanc is an assassin, and the main characteristic of an assassin is high damage in exchange for a high risk playstyle, mages on the other hand can also have a high amount of danage, but are handicapped by giving them limited mobility to allow for counterplay. And thats where Leblanc completely breaks the rule, because looking at most assassins you'll see that their escape is limited, either by being forced to gain a reset like khazix, or by killing their targets before they kill the assasin. However, LeBlanc's escape is applicable at almost any given time as she has the ability to jump back instantly for three seconds, regardless of whether she succeeded at assassinating or not, while also having a higher damage output than most assassins and a rather low skill requirement to do so ( looking at champions like zed who is rewarded for skill). And it's not like I'm crying while not having played her myself, every time I do, I hit level 6, press q r w and my lane opponent is dead within a second. While I find that questionable in itself, her ability to escape sticky situations almost always bothers me, and the passive just adds insult to injury, because stealth and a duplicate makes walking back to your turret so easy -> impossible to gank. Either the second cast of distortion needs to be different, or her proc on q should do a dot or something of that sort, so she has at least some counterplay.