What do you think About Kennen?

At patch 6.9 all mages had a buff exept kennen.... THE UPDATE Kennen's niche of "dive the enemy team and stun kids" is well-defined, but the randomness of who his ult zaps means his teamfighting impact is often left up to chance. Sometimes Slicing Maelstrom focus-fires a priority target on the far edge of its range, other times it ignores the squishy that Kennen’s right beside as they saunter off to safety. This can be just as frustrating for Kennen’s opponents; it all depends on who draws the short straw. We’re removing Slicing Maelstrom’s randomness to make it more consistent for both sides: Kennen will always stun enemies he’s allowed to stay close to, so it’s never a waste of resources to peel him off your backline.

On a separate note, we cleaned up a few weird numbers in Kennen’s other abilities. Notably, Electrical Surge’s range was overly generous, so we’re trimming it to keep Kennen in harm’s way if he wants to jolt his enemies. General ICONS Kennen’s icons have been updated! Passive - Mark of the Storm #cleannumbers (Yeah... clean numbers nerf everything...)

MARK DURATION 6.25 seconds ⇒ 6 seconds FIRST STUN DURATION 1.25 seconds (unchanged) REDUCED EFFECT WINDOW 7 seconds after last stun ⇒ 6 seconds after last stun ADDITIONAL STUNS 0.6 seconds ⇒ 0.5 seconds Q - Thundering Shuriken COST 65/60/55/50/45 energy ⇒ 60/55/50/45/40 energy W - Electrical Surge COST 45 energy ⇒ 40 energy RANGE 800 ⇒ 750 R - Slicing Maelstrom LIGHTNING ROD Slicing Maelstrom is no longer limited to striking the same target three times per cast, but only the first three strikes on a target will apply Mark of the Storm DAMAGE 80/145/210 (+0.4 ability power) per bolt (unchanged) NEWDAMAGE FALLOFF 25% per bolt (50% minimum damage) DURATION 3/4/5 seconds ⇒ 3 seconds at all ranks TICK RATE 0.25 seconds ⇒ 0.5 seconds MAX DAMAGE PER TARGET 240/435/630 (+1.2 ability power) ⇒ 300/544/788 (+1.5 ability power) EMP Each tick now strikes every target in the area, including minions and monsters. **You Guys think that Kennen is balanced... weak or strong? i think he is weak....and why they should nerf him? At patch 6.12 i wish will get buffs... **