Crit and Crit Reduction need a balance

I really feel like there is a huge balance issue when RNG (Random Number Generating) is taking control. Tons of new crit items , a mastery that heals champs for critting, and very little to counter the crit mechanic. Omen is the only item with any sort of counter to crit, and that is only a 10 percent reduction of damage taken. I really think there needs to be more items or a better rework of the crit mastery in order to balance it out. Maybe an aura or two that reduces the crit chances of enemies or build in more crit damage reduction on existing items. I have played yasou and in the right hands a self sustaining crit machine seems a little good with no counter play. And playing against that seems whole heartedly imbalanced. Just my wondering if there are any plans or if anyone on the PBE knows of anything going on to try and bring balance to the crit mechanic.