User blog comment:Xyzdragoncannon/Champion Reveal: Tahm Kench, the river king/@comment-24795478-20150625193222/@comment-5077844-20150625200509

wouldn't call him broken. Just the fact that he lacks mobility (apart from Ult) kinda tones down his strenghts.

it's mostly about not letting him get into your face.

I do agree that his damage is massively overtuned, but if you check the PBE, they already put out some nerfs to pretty much all of his damage (which basically means that they decided that he'S supposed to be a support and not so much of a toplaner and adjust his damage accordingly)