I was looking at a Rioter talking with Hashinshin,
Hashinshin: Not enough Bruiser at World, Rioter: Not enough Assassins at World,
Meanwhile Solo queue.... Too much Bruisers, Too much Assassins,
So Technically, if you want these classes at world, you gotta make them move toward competitive.
We Mages and Tank mains would gladly want a trade. Make Mages better in solo queue, Make Tanks better in solo queue, Make both of them horrible at competitive plays.
Let's starts off by removing every abilities that make them a Team play champion. Ryze R, Vladimir R damage enhancement, Galio R, etc. Then buff their own abilities that only benefit themselves.