Something to think about.
Would it be a good idea to attach currently existing negative mechanics to champions with problem kits. Problem kit of course rephering to champions that have kits that essentially throw the opponent out of any equation when it involves them. Champions that don't get outplayed when they die, rather they outplay themselves.
Like gragas. Generalist jungler champion with great range, great sustain, and one of the best initiates and disengages rolled up into one ball. essentailly when he isn't played its because he is either completely countered by atleast one champion every game or unusably nerfed.
well what if we were to attach the sej ult problem to his ult. hit directly or get weak reduced effect. with that one could even reasonably remove the current negative (Travel time is set to be a certain time, meaning point blank ults are not great)