Tahm Kench needs a buff

First off I'd like to try to understand why the river king isn't more viable in the jungle, his current state is very weak and makes him one of the worst supports to soloqueue with, in pro play he is still picked because if you have an organized team and people that actually know his abilities they will try to utilize them. But the only thing that still makes him viable is his W, it's basically a low cooldown qss which can save your teammates from quite a lot of the ultimates and abilities in the game.

He is supposed to be a harasser but in his current state it's almost never worth to play him especially in soloqueue because of his low mobility. I think that maybe the q stack should come back so he can maybe toplane but most of all become a viable jungler, the W needs serious change though, something that doesn't just make him into a support champion. I could see something like a push with his tongue or breath to be viable as a support ability, that way instead of making your allies immune to everything almost you can push them away with shields or the enemy further back, you could also aoe jungle camps if it would have the same range as Syndra's E. His W is his whole kit and that makes him more boring to play which is sad for a champion that has so much more to offer.