Honestly he just needs an update. His kit is made of bits and pieces of things that you'd see in multiple classes mashed together (Vanguard Passive and Ult, Diver E, Assassin W and a Q which is pretty generic but I believe is very common amount Juggernauts in some form), His reliance on
ended up warranting Riot to do a preemptive buff on his Q which seems to have made his win rate jump up in no time flat telling that his balance is on a knife edge where one minor change could push him one way or the other and to top it off he has ended up getting a very singular build path, which USED to be his secondary path ( don't even get me started on the useless AP scaling on his W).
All of this stuff are issues do to how outdated his kit is (seeing as they didn't have the same concept of classes back when he was created) and could be fixed with an update, focusing on certain aspects of him and his kit but leaving it open ended enough for multiple builds and styles of play. He's still got a lot of potential waiting for Riot to tap into.