So about that Janna nerf on the PBE..
As a Janna main with roughly 2k games on her i have to ask:
Why?
Her entire playstyle revolves around very high game knowledge combined with your mechanical proficiency. You nerf her shield because...? Seriously, it feels to me like you guys don't want any champion to be strong for too long. Because that's "unbalanced".
I have never felt like she was unbalanced. Every time i play against her, the player is nothing in comparison with what is possible with Janna. Even if he wins, he contributs like 10% to the whole game's outcome because her build is too damn hard to figure out for some reason. I managed to find out her perfect utility build in approximately 100 games. I don't see why nerf her main stat-buff that requires pretty good timing and sustain to pull off. Now, i know the 5 seconds is a bit much for protection but considering there are Brands and Annies and Karmas and Namis and.....pretty much everyone except Taric who can insta-burst with the pure damage/cc-tools, i'd say it's a fair tradeoff.
Anyway, Janna is still balanced from my perspective because she shows no clear particular strenghts in anything else than disengaging. I have yet to see anyone flexible with her and anyone who knows how to turn around fights with Janna. Honestly, i WANT someone to be that good but my hopes are slowly dying.
Her win-rate is around 55% on EUW, which isn't anything too special either.
Considering she is rather simple to kill when locked down without ultimate or chain-cc-d and that there are only 3 wards on Sightstone now, limiting her roam-warding massively, she's already on the edge of falling to the lower tier picks.