I think season5 was unbalanced... but not as imbalanced as this...

Riot rewarded tank players with lower cost tank items, for not going damage and slaughtering your opponents quickly they rewarded that tank playstyle with low cost items, and beefiness... That made sense on why tank meta was so powerful, but it was balanced in late game if allies could peel for ADC, the ADC would shred the tank... but this season? THIS... SEASONyou buffed ADC stats, playstyle, item choices. Everyone is walking around with 60%+ Crit with 2 items before it was 3-4 items around late game when ADC's had this, but you could get a defensive skill that reduces crit dmg done to you by 10%, combined with randuins it was solid.. You removed that skill. You also nerfed tank items. Also implemented new items in the game that counter-act tanks plays.

The I'm slowly making is that you nerfed tanks 2x(Item costs, easily accessed items that reduce health/armor for a cheap price)
You also bugged ADC's or AD assassins by 3x. You essentially fucked tanks in 5 categories. WHAT is the point of playing APC? or bruiser? why would anyone play anything other than 2 adc's, in jungle, bot lane, maybe support or toplane... why would anyone in their right mind play anything other than an ADC... I can't wait to see the "QUINN op" at top lane... cuz dont worry if theres a darius,olaf, or any melee champs and they get behind(Standard rule to build tankiness when you're behind/losing lane) and he starts building tank items... lmfao wont matter the 2 adc's in middle-late will shred that shitty ass tank. F**** you Riot. F*** you. Balance will always be an issue in games. but how can you go overboard THIS heavily. THIS fucking heavily. This is ridiuculous