Tweaking Kennen's "Thundering Shuriken"

Thundering Shurkien: Now had up to 3 stacks. Cooldown for each stack: Increased to flat 6 from 8 / 7 / 6 / 5 / 4s. Global cooldown between throws: 0.5s Cost: Increased to flat 60 from 65 / 60 / 55 / 50 / 45 Energy. New mechnic: Upon hitting a champion half of the used energy is refunded and the cooldown is halved,

Effect: The changes slighty weakens Kennen's lane presence due to the cooldown increase vs. minions. His roaming potential however is increased by the stack mechanic. Kennen now has a better skill dependant best-case scenario, if his first shuriken hits he can follow up with a 2nd one immidiately afterwards. Even a third one might be possible if energy runes are equipped and BOTH former shurikens have hit. HOWEVER missing a shuriken results in a higher cooldown post skill level 3 and higher energy consumption which also limits the ability to use further abilities.

While this tweak is no straight buff, but also introduces a worse worst-case-scenario I believe that it might help him to get back into competitive play. Making effective use of tweak requires skill and practise which I feel are a good addition to his otherwise not-so-challenging kit.