So in about 9 months when you rework ryze for the 16th time

Remove his mana scaling.

There's no feasible way ryze can be balanced with this concept. You either nerf his numbers around this until the point where he's total shit or you buff them slightly where he becomes a hyper scaling lane bully once he completes or . Then you factor in his low CD root that does damage and can effectively keep one target in place for a long time without almost any counterplay, there's no way you can balance around this.

He spikes too hard with mana items and always will considering there's a plethora of mana items. You keep him short range as an intention of "counterplay" but because of this, you have to give him spells/abilities to be durable or help kite/chase which make him an even more ridiculous laner in general.

Honestly late game ryze is pretty average because he can be focused pretty easily. The part where people have problems with him is during lane phase where he completes tear and catalyst and just straight up 100-0s you for buying mana.

I don't even know if ryze is good or not right now and I don't care how many visual reworks you give him, how many Warcraft things you steal and add to his kit or how less blue you make him, here's the point. As long as he continues to have damage that scales with mana he will always be broken. Trash or OP, no in between. And that's because of how stupid his mana scaling becomes. I don't know how many more reworks it will take for you to figure that out but Riot Ryze is gonna have to find another champion to be Op.

"Dont call me greedy."

-riot trandomere