What is going to happen with some champions riot?

Riot you have created certain champion making league of legends a lot more unbalanced for example.Those champs are tanky and deal damage meaning that they make other champions useless why play while you can play .Nidalle is a fragile mage that deals a lot of damage garen is an agile tank that deals damage as well so why is garen builiding tank and dealing 1000 damage form his e riot?doesnt he need nerfing? illaoi heals from tentacles and deals damage while going tank darius also heals deals immense damage and goes tank mundo deals a huge amount of unscaled damage and is a very powerfull tank.So either make champions tanky with no damage or make powerfull bu fragile champions For example i just played a game with and could easily use his combo and take me to below 30%hp while having a tanky build so it isnt fair. it is like saying you can play somebody that deals dmage or you can play somebody that deals damage and is also tanky af so the damage from tanks should be extremely nerfed in my opionion hope that this reached you