Every champions is got tier and up
Every champion is great in this game but said to be bad unlike the champions built to be great like Doom ægon ect. while others are supposedly bad take diablo for an example everyone says he is bad but the one person that believed he was good took him up and found potential as the 2 things u need in this game is patience and skill It doesnt matter how much you spend on this game to get a certain champion as if you believe they are good you can show potential in that champion. But even if a champion is op right now their will be a better champion that takes over and then the good champion today could be underrated and not good in future content. And we know that some champions that are bad have good potential in endgame content as king groot is needed in act 6 and imagine if in the future all the champions rated as bad could be used in higher content. You could take a groot and if you believe he is good and you show the potential you could prove their is more than meets the eye with champions. Every champion has potential so if you think they are good and you show the potential the bad champion of today could be the great champion of tommarow.