Critical chance should not exist in a game like League of Legends.
Critical chance is an element of chance which allows whole teamfights to turn around just because an adc got a lucky crit while the other adc did not get one. We have seen a laner completely zone out the enemy just because they got a lucky crit in a trade. This demonstrates your luck rather than your skill. League of Legends was meant o be a game where players can demonstrate their fast clicking and thinking skills, not their luck. I say we remove crit and buff the champions that used to rely on crit, like ashe and gp.