Riot, Please Add A Champion Runes And Mastery Lock.
League of Legends is a great game, but one rather annoying problem---is when you realize you have the wrong runes and masteries! 
But! There is a --possible-- solution --besides, you know, changing your runes and masteries-- for the people who forget, or get disconnected in champ select and don't reconnect until the game has already started, or some other miscellaneous reason!
A feature that lets you lock specific runes and mastery pages to specific champions! Like item sets, but for runes and masteries. So when your champ is locked in, your runes and masteries update to the chosen pages automatically!
Of course, you could still change them around, but no more losing matches because of the wrong runes and masteries! 
