A little unfair.
I want to start this off by saying I have screenshots, but don't want to go through a third party to post them on here. Anyways, I recently played a game with an enemy 
carry who absolutely obliterated us. I was doing some math and became really confused. She had about ~500 AD with all of her items, and 50% chc. I had 208 Armor (68% reduced damage). Now her first auto should be dealing >1000 damage (no crit) 68% of that reduces the damage to >320 damage. If it was a double-tap auto, let's say >1100-- 68% of that is >352 damage. Again, this auto was not a crit, yet hit more for >500 damage. I'm not sure if this is correct through my math. There may be more calculations I'm missing, but. Why? Also, not her build was
So no added on-hit damage. Also, I full-hardedly believe these items are not "fair" (for lack of a better word:) >500 Ad, 124 Armor, ~80 MR & 1900HP, she alone had a 325 shield from 
, and not to mention a hefty shield if low due to 
, 30% Lifesteal (also abusive, maybe life-per-hit might work more fluidly) and a revive. This is absurdly tanky and deadly on a carry. I know i'm venting a lot of things at once, I'm sorry, and I appreciate any help/feedback.