You can carry ranked games with almost everyone, even as support, just stomp your lane (which shouldn't be hard at 1100) and then help other lanes. 89% (8/1) winrate on Riven, 83% (5/1) on Xin and 66% (6/3) on Vayne here. It's less luck than you think, it's partially individual skill and partially teamwork skills, even if you can win your lane you have to be able to turn in into a win by helping your teammates. A mistake many people make is beat the opponent in lane and then get mad at their team for not owning their lane and because of that they stop focussing on the game. I have a 68,4% (26/12) winrate for ranked games right now, only soloQ'd.