Ideas for Kennen Buffs

So as many of you may know, Kennen's in a bit of an awkward spot right now. In my opinion, he's pretty strong once you learn him, but even the best Kennen is still only as good as his team.

So I've thought of a few buffs to give Kennen a little boost. I'm not necessarily saying all or even one of these should be added to the game, but rather they should serve as some interesting ideas.

PROPOSED BUFFS:

Make E a Toggle Reason: Kennen's E, while being core to his gameplay, could use a little boost. My proposal is that his E becomes a toggle, costing 50 energy initially, and after five seconds, costing 20 energy per second. I think this would greatly help his initiations, due to his ult costing no energy - this would allow him to enter fights fairly quickly and with durability, land the ultimate, and get out while the enemies are stunned.

Make W Active Chain Targets Reason: Kennen's W is a great ability that is essential to the landing of his stuns. However, I think it could be improved a little bit by causing for all enemies between marked targets and Kennen take damage, or even a Mark of the Storm. I think some very fun plays could be made with this, for example, landing a Q on a minion behind an enemy champion, positioning yourself so that the champion is in between you and the minion, and then activating the W for quick harass.

Cause Spells Casted While in Lighting Rush to Deal Additional Damage Reason: It's pretty hard to land a Q while in Lighting Rush, but for players who have mastered it, I believe there should be an incentive to do so. Adding additional damage to spells casted while in Lightning Rush would make for flashier plays, and add a good deal more fun to the champion. After all, a shuriken shot from a ball of lighting should hurt quite a bit, right?

Cause E to Deal Damage if Un-toggled Reason: I always thought it was peculiar how Kennen's E could be un-toggled, and how the player gets very little reward from it, other than being able to auto-attack. Perhaps if damage was added to Kennen's E, or even if it applied an AOE Mark of the Storm, there would be a bit more to the seemingly simple skill.

Increase the Stun Duration Reason: This one is probably the buff I am most passionate about. Kennen's stun is pretty damn difficult to put on a target. It really frustrates me when champions like Ryze walk into lane, press W, and land a stun (or root whatever) that, at max level, is almost twice as effective as Kennen's. It's hard to land these stuns, man! Give us a little bonus.

ALSO A COUPLE PROPOSED CHANGES:

Fix the Shadow on Electric Surge Reason: Pretty self-explanatory, Rito pls.

Change W's Passive to AP Reason: Sorry all you hipsters, but an AD component to an almost-fully AP champion is just confusing.