User blog comment:Deshiba/Are you Critting me !?/@comment-4977390-20130518183857

There was already such an idea, and it was dumb. This system can be abused easly. And every RPG-like game use criticals the same way. You can't have every aspect of the game calculated and planned. Riot already did a good job removing randomness from LoL, like removing dodge or the crit chance from masteries. If you want crits you get crit runes or buy crit chance.