Play the normal game and discover

why the heck does this player have "smurf-like" in bronze? how possible is that?

https://na.op.gg/summoner/userName=jesusisonlyamyth

I believe he exploits the LoL's MMR.... Take a look at " Heimerdinger 59.5 CS 0.65:1 KDA 1.2 / 3.1 / 0.8 0% 13 Played"

what do you think? it was exploit or it was LoL's server side issue?