The real problem I have with his stun is that at Rank 1, Udyr has a 1-second stun that requires no proc other than "Haven't hit this target in bear form in the last 10 seconds."
Skarner has to hit with 3 abilities and then AA to get a .5 second stun... It feels very rewarding, sure. But why doesn't Udyr have to work for his stun like Skarner does?
Don't get me wrong, Skarner is my favorite champ of all time, ever. But it really bugs me that they nerfed his damage twice saying he was too strong after giving him his new kit and Yet, if I don't go full tank, I die before being able to do any damage.
And then, once I get tanky enough to threaten people, I can stick to them all the way to their turret, but I can't kill them.