While I talked about this on my tier list. I really think people that talk about some champs not being viable should look at this tournament.
I'm even surprised at the sheer amount of support teams choosed (mainly Janna and Sona)

Yes It's true as I said in my tier list Jarvan, Pantheon, Wukong, Yorick, Rammus urgot, Kassadin And Warwick are picked banned every game. But outside of that (and considering there are 6 bans) there are a LOT of viable champs and you can see them in action in the different tournament streams.