An interesting idea for Anivia
Personally I really like the kit anivia has with 1 exception, her wall. I feel that her wall is way too position heavy due to having to face a specific way to cast a decent wall. My idea about changing it a bit is this:
You can still hit w to get a quick wall in whatever direction you are facing If you hold w and drag in a direction (similar to Viktor e and rumble ultimate) you can change the angle of how the wall will be placed (with the first part of w being the center of the wall and the drag point controlling the angle of the wall) I think this will add some depth to a champion who's so position heavy, that using your wall just doesn't feel very useful sometimes because you're forced to cast it on certain angles