was designed as a melee duelist for the midlane, as a counter to immobile mages/ADCs and I suppose immobile toplane tanks, and his kit had plenty of power before keystones, keystones just amplified his problems. Baseline Yasuo was one of the reasons warlord's bloodlust had to get reworked the fastest of any keystone. Building 2 items and getting sustain while almost building half bruiser was ridiculous.
has been top tier but never because she was OP, nor toxic, almost ever. She requires a ridiculous knowledge of the game, positioning even further than that of almost all other characters since her majority of damage comes from a side entity, and was built for teamfight and AoE power rather than a duelist-type burst mage. Orianna relies on knowledge of how to position the ball, shockwaving at optimal moments, creating zone tools to frighten off targets and repositioning to defend targets with the shield, or adjust mobility to ensure escapes or engages. Her level of power is great, but it takes someone with the knowledge of her kit and almost every single detail about her to use her at maximum efficiency. And why take ori when you could take
or
or
or
. All of them are nearly equal to Ori when it comes to full utilization.
But you know, you can keep walking around uninformed. Maybe do some research with that wasted time, eh?