Ryze no longer has a real "identity" (patch 6.3)
Ryze is supposed to be a DPS Mage and now resides as a bursty Mage. Ryze's identity is supposed to be a machine gun Mage, but they capped his passive, making him much less rewarding.
Riot could have nerfed his kit in other ways, heck change his snare to a slow. They could even nerf the snaring time considering how many times he could cast it. They should change it. It's the most problematic part of his kit. Instead, they decided to stop him pretty much completely by capping his spell resets. I hope Riot considers reworking Ryze's W, and reverting his passive cap (chances of them reverting are very low).
I really do miss mastering Ryze, learning his mechanics, and becoming a huge threat to the enemy team.
/rant
I feel your pain...