Okay...
-
When they gave her Charm the 20% Damage increase, they also took damage out of her Q. The 20% is to incentive full skill hits that always lead off with charm.
-
Her E has a REALLY SMALL HIT BOX, and moves moderately slowly. It's usually easy to avoid, hitting Ahri hard.
-
Her Q heal is extremely unreliable, because of how it works. Got to hit 9 targets with skills before it will heal on the NEXT skill.
-
Her damage scales less than almost any other mid mage, and her range puts her in precarious positions.
-
Her mobility is sub par vs the champs she generally lanes against (
all have more mobility, and can cross maps/gank better than she can and before she can arrive)
-
Her Ult damage is low as heck.
-
Her W usually targets nearby minions, not champs.
.....
You basically have to hit her entire kit to be of any use, and if someone gets hit by both shots of Q, they are either a) right at the end of the Q, or b) They are a bad player.
The champs I mentioned above own her in lane.
I'm not saying she's not viable. But you trying to screen shot a champ and say "just because their kit has this" it's OP without even going through the math, or actually practically thinking about the how it is to play the champ doesn't win you arguments. It just makes you look biased and uninformed.