How about this change for ADC and all ad bruisers
Lets remove crit all together. Lets add scaling ad that works like ferver of battle. All Crit items will have crit removed with a ad that scaled based on amount of auto attacks. It could also scale with level so the "late game carries" really are late game carries. We wouldnt have to worry about one class abusing crit items and could balance it around the entire ad population. Buffs and nerfs would have to happen to certain champs but it removed rng and the one shot alot of adc have late game from stattik and rapidfire.
It should slow down snowball somewhat as people couldnt get 3 items and steamroll.
By removing crit, you now have to fix Jhin's passive, Yasuo's passive, Fiora's E and other champs too. It's retarded. A Yasuo with no crit is useless.