Hey anyone got a better Ryze build than this?

Just curious to see if I'm fully retarded or on the right track

Just curious to see if I'm fully retarded or on the right track
I was going to say I go
instead of
for the extra CD and more mana, but I just literally realized that extra 10% cd is wasted and there is less mana and no ap. Im a tard.
Yep that's may main question about my build. You could also go any armor item and then Locket or Visage, which would get you to 40% as well, but Zonya's Doesn't seem worth it and Randuin's/Sunfire/Thornmail might be ok, but then you severely lower your damage by not having that 500 Mana from IBG.
But then again IBG just seems goofy on Ryze since you almost never hive time to thread in an AA while you're spamming.