This game solo rank matching system is so wrong, don't play this game not recommend, dev on purpose to team you with stupid players, afk, etc. This game not tell you specifically about the roles, how to change or how to set it, a lot afk players, don't know game rotation, if u want up 1 tier it cost 100 days to do it, all coz the algorithm of the matching sucks, so if u dont at 100 days it will be like win streak 4 then 12 lose streak, wth. Freaking waste