Ryze is no longer about stacking Mana, AP Ryze deals more damage.

While I think that the rework is ok or maybe too strong power wise, it makes me sad that his AP ratios are now stronger than his Mana ratios.

Ryze was really uniqe among the Mages with his Mana build, now he will go to the same generic AP builds that all of them use.

let's take a look at the numbers, with 1000 Mana his abbilities wil do extra damage: Q: 20-40 / W: 25 / E: 20

to get the same damage with AP you need: Q: 36-72 AP / W; 62 AP / E: 66 AP

While Ryze still gets some use out of Mana, it's a lot easier to stack AP, you get two to four times the damage per item. Even if you use Archangel to get bonus AP from the Mana, you still won't break even with stacking pure AP

I'm not sure yet if the mana shield is up often enough, to decide if the added health would be worth the lack of damage.

Or maybe is the way to go now. Maximises Mana while still getting a lot of AP (and health).