User blog comment:ChickenRave/Elmye, the Reflection/@comment-26044269-20150208000756/@comment-26030737-20150208101242

I personally saw fury as a static secondary bar to indicate how much power Elmye has built up, and since I didn't indicate he gained fury from using basic attacks and receiving damage I thought people would understand he won't gain fury this way. Then I indicated fury gains in the additional info of the first 3 spells and how it is spent in Form Shift. Basically his spells are his only way to manipulate fury.

I designed this champion to be a mage that can't rely on a single form since they go in a cycle. Considering the player will build AP because he has 2 forms using it, he must make every spell count before he reaches the end of the Green Form. In teamfights, he will preferably start with Blue Form, Form Shift ready, and the least fury possible; as he will be able to deal good damage until he has to change, then better damage, then he can only rely on basic attacks which can become deadly if he stays in danger, powerless. Every spell counts because whether or not he touches his target, his blue spells will give him fury. Summoned enemies (Elise's spiders, Annie's Tibbers, Heimer's turrets...) will make it even more difficult as they are additional targets that make him gain more fury (because of the 5 more per enemy hit). After switching to his Green Form, vision is key: no spell can be cast if he can't see his target. At this point, every spell counts again because if he doesn't kill his enemies before reaching 100 fury again he can only rely on his auto-attacks and Form Shift is on cooldown. He doesn't have a choice but have a serious impact in fights before he has to retreat.

Now about the stats, honestly I had no idea of the correct stats he should have, the only thing you should take seriously is his 100 maximum fury.