If I worked for riot I would rework kennen
Kennen has disappeared from the game after the Juggernaut patch. Also good game play is very linear and very telegraphed. I think that a rework would be a good for kennen. Here's my idea
Passive: static feild : whenever an ability triggers static feild a zone is dropped on the ground where the ability landed. While Enemy's are in the zone they are damaged 6/12/18+(ability power x 0.3). While kennen stands in the zone he gains 10% movement speed and 15% attack speed. These zones can stack on top of each other up to 3 times
Q: stay the same and applies drastic feild
W: energy pulse: Passive: every 3rd attack against the same target deals (ability power x 0.7) damage and applies static feild Active: kennen drops 3 static feild where he is standing
E: storm charge: kennen marks an enemy dealing (ability power x 0.3) damage Per.5 seconds over 2 seconds. If the target is standing in an static feild when the ability ends they are stupid and the charge explodes for ( ability power x 0.8) and hits all Enemy's around the target and stuns them as well.
R maelstrom: kennen deals alot of damage in an aoe