Ranked is based 90% on luck due to team and is not fair to players trying to climb. During placements and after it is near impossible to move divisions right now due to intentional feeders and trolls who should be iron 4 not silver. Ranked needs to change to a individual performance based system, not a who has the less-trolls based system. I've had 3 games in which bot lane alone went combined 1-21, 1-19, and 1-20 out of 11 games played. This type of play does not belong in the same lobby as me and only affects the players who should be winning.