5.10 Ryze Too strong and too weak at the same time

I've been maining ryze since 5.10 and here are my thoughts on his current situation.

1. There is no good reason to build ap items. (except void staff)

   Roa will always give you the most damage and tankiness compared to other hybrid items.

   Items like zhonyas and abysall give very little damage and possibly less defensive stats than ROA. Items like FH give almost no damage and are imo not worth building since you don't need CDR. I would rather build a Randuin's omen or Thornmail.

   Here are the stats on ROA: 80 damage to Q (this includes the ap gains from seraphs) 650 health 52 shield for your passive even more shield towards seraphs. 120 AP item: 66 damage on Q

   Why would you build anything else 702 guaranteed health and more damage than 120 ap items. Ryze now has even less options. The old '1 build' has almost become '1 item'

2. Ryze is a badass dueler.

   I've played ryze top and mid and he can beat pretty much anyone 1v1 once you know how to use his passive effectively. He completely out damages anyone and can even 2v1 when a jungler ganks if he has 3-4 passive stacks.

3. Ryze is not that useful in team fights and succeeds better at split pushing and making 2+ people stop him even though he can't take towers fast...

   No matter how well I do, go 4-0 in lane, team fights makes me end up something like 6-8. Aoe cc's, slows, knockups, a thresh hook, people flashing out, any of these is enough to make your passive run out and then the fight is lost before your next passive is stacked.

4. Relying on his passive too much, ryze can be ridiculously strong and ridiculously weak and cannot press his advantage even when far ahead without passive.

   The main error people make when playing vs ryze is dueling him and trying to bully him because he has such a low winrate. But that is when ryze wins. If your opponent has played the new ryze. He knows all he has to do is watch your stack and never duel you, and wait for team fights where it is easy to stop you. In these games, you can't do much as if you try to force a duel you are prone to jungle ganks. As mentioned in the previous section, ryze is just too prone to cc when he has 6 seconds to do anything and everything.

Currently the most success I've had is going Sorc Shoes, ROA, ROA, Seraphs, and 2 defensive items. Banshees, Thornmail, Randuins, GA, or Void Staff vs many tanks

I just feel like ryze didn't turn out how he was meant to with his new kit, but I will keep playing him and trying.

TL;DR Ryze is just too strong and too weak at the same time, and relies more on his opponents not knowing how to play vs him rather than him being good. AP items, and hybrid items aren't worth building over ROA, which leaves him with 2 item choices: ROA and pure defensive items. (and situational void staff) Ryze is too prone vs cc and mobility because he has 6 seconds to work with.