Let's just review the great success of Riots Preseason 5 goals
- Increase champ diversity
Professional pool currently contains a record low 19 champions.
Great success. Moving on.
- increase strategic diversity
Ranged bully top, safe Mage mid, jungle/mid camp bot until someone gets first dragon. That team wins 84% of the time.
Amazing success
- increase item diversity.
Morellonomicon/IE first build on 6-8 champs in a given match.
Censer, Glory, Ohmwrecker, Warmogs, Reaver and every other new/updated item boasts a 0% build rate.
We'll check that one off the list too, done and done.
? Or this item?
or before they buffed priority in damage calculation buffing those items?

while also buffing critical and attack speed?