I've been a mid laner once now I'm a Tanker...
I owned almost all mid lane champion but in this meta I haven't been able to carry well from the mid lane. So I decided to be a tank, and oh boy being a tank is easy o.o. All my match history are mostly wins by being a jungler tank or a bruiser tank. They are just MONSTER LATE GAME, the reason why the tank are soo strong right now is that the hyper carry that use to melt them are too weak to deal with them.
HEre are some champion:
Nerfed to the ground when he was in a balanced position
Ruined King Nerfed for her soo she got to build critical 1st like phantom dancer or IE
Nerfed movement speed and his early game armor and Mr shreds hurt him
HEre are other champions that can do well in this meta to shred or destroy tanks:
He just eats tanks late game with the true damage
His ultimate is pretty good since he would be as unkillable as their tanks
This guy passive is just too good that flat % and those big ratio on abilities
He can pretty much delete a tank late game lol
If riot would buff the 3 others champion maybe they would be pick more: Here is a video of Rammus just showing how vayne is weak .-.. https://www.youtube.com/watch?v=Xnt7onmDnvo