Tank assassins

My thoughts on this whole tank akali and tank ekko are that they make the game unfun seeing as both are considered assassins yet they can build tank and still dish out a lot of dmg and seeing as neither of them was meant to be played as tanks i believe you should do something about it. I as a major league player and a pbe tester believe so strongly that this needs to change that i might end up not playing anymore due to the lack of "balancing" granted i do have fun playing league of legends however these champions which werent meant to be played this way are ruining the game i love to play. i sincerely hope that if they stay in the game u allow other champions who used to be designed for multiple ways of play would be brought back seeing as u gutted so many champions kits to make the better suited for the role you originally thought up for them.