Why the lower win rate champions are in a way worse spot then you think they are.

The difference be the win rate of zac and vi is only 7.5%. With that small of a difference you could see how some people, especially after playing nemesis draft, would think that they have about they same power level. But they dont, not even close, here's why. Most of the time when a lower win rate champion is picked, he is the only one in the game. The rest of the players pick fotm or at lest ok champions. You never see a urgot, poppy, olaf, veigar, and taric team outside of the normal game modes. Now lets do a thought experiment. Lets represent each champion with a pair of dice. to win the game your teams total dice roll needs to be higher then the other teams. Your in ranked so all your team mates and the other team picked the most op champions. So they all get a six sided dice. You on the other hand just want to play the champions you think are fun. So you pick zac jungle. He is not has powerful as their vi so lets give him a three sided die. Now, you may think that is way to low, I gave him half the power of vi even know their win rate is almost the same. That would be true, if this was a 1v1 game, but its not. If you combine the dice the enemy team has a max roll of 30, and you team has a max roll of 27. You team has a 47.37% chance of wining. I cut his power to half of everyone in the game and his win rate is still higher then his actual win rate.

As bad as that is, the true difference in power is even worse. Like most of the up champions, zac has a super low play rate. It is only 0.82%, vi has 25 times that. Which means zac is only played by his mains. Just imagine how low it would get if he was played by every tom dick and bronzy like vi.