Mic
I've been playing league since 2013 and I simply love moba games like league of legend. But sometimes you feel like you need to play with a friend (or friends) it's easier to communicate with them. i think that Riot should have an mic system with PTT (push to talk) during game it's hard to type while in an teamfight or discussing a plan. It's easier and more effective of winning the game with an mic. It's also very stressful when people don't play right and they don't know what they are doing.