Fixing broken Pick/Ban timer when you lag in champion select
Everybody knows, you have a set amount of time to make each Ban and each pick. Waiting for the timer to count down to zero will lock in your Pick, skip your turn to Ban, or cause you to dodge if you didn't select anything during your Pick turn. If you lag during this time, any actions taken during the lag will not register. This means that the Timer will continue to count down as normal, and nothing will update on your screen until it hits zero for the next Pick/Ban. Let me give a scenario to explain why this can be catastrophic to your game;
Problem You are first Pick/Ban. You ban all 3 of yours, and you unknowingly lag right after. To you it looks like the opponent is taking the entire allotted time. In reality they already banned and your time to first pick is counting down. When it finally shows you it's your turn to pick, you see the full time on the clock but your time is actually almost up. Your time is up even though it shows you have 20 seconds left to pick, you dodge your series. GG.
Solution Have the client frequently ping the server for correct information (timer, champions selected).
There is absolutely no reason the client should count down an entire minute without checking to see if it's correct or not.