Killing tanks with new champs

Tanks have a lot of emphasis on their ults. There are now (in my opinion) 4 tanks that have some reason to be picked. Malphite, Sejuani, Rammus and Sion. You can still play these champs and do pretty well, but there is one thing - Sylas MUST BE BANNED.

If you pick a tank like this into Sylas, he basically gets a free strong CC ability, he can instakill you with Malphite ult. He can steal is from you, you dont even have to be lvl 6 at that moment and use it against you, also his ult steal is no skill its just point and click.