I have a thought about the Janna nerfs
Okay, most people believe the Janna's a bit too strong. No argument there.
However how riot did it is a little odd. They didn't just do one thing to her. They hit her in a lot of spots. So that made me wonder, is she getting nerfed in preparation for a mid-sized rework sometime next season?
This isn't the first time Janna has had the highest winrate. I call her the once and future queen of winrate for a reason. When she's been good, she's been really good. When she's been bad, she's still playable. She's a simple champ that is good at keeping her ADC alive. That's always going to make her a viable champ.
I can't help but think riot's changes on the PBE are both a nerf and a test for her future direction.