User blog comment:Supp0rt4n00bz/Some Champs need a nerf!/@comment-3578129-20130520005036

Those champs, who need a special enemy team comp or straight counterpick to keep them from destroying everything, are OP. Assuming all players are same skill level, some champs just dominate most others. Darius can own almost all solo top champs, get fed and destroy entire enemy team with refreshing ult. He can be stopped ony by taking counter in lane (so you have NO CHOISE, you can't play what you want, you NEED to counterpick him). Same about Draven in bottom lane: his overwhelming dps rapes everything, especially when he has killer support, so you have to completely adjust for his playstyle or pick counter in lane to prevent yourself from feeding. Amumu has to be counterjungled, this is the only way to stop him from dominating eventually. Tryndamere has to be focused and cc'ed constantly and even forces some players buy thornmail only cause of 1 champ, or pick special champions like malphite or lee to counter him in lane; if this is not done, he gonna penta.

Some champs with random average team comp and same skill level players are just stronger than others. That's why they are OP.