Kennens game play purpose???

Kennen is known for his ult damage and stun. It's key. But that's all he is good for. His laning phase is boring and for being so squishy he does not do alot of damage at all. My idea

Passive: kennens abilities and attacks always crit equal to (damage of attack + %crit)

This gives kennen damage he deserves and removes his stun from stacks. He won't feel guilty for missing his q and failing to stun. Also most crit items provide attack speed which is something kennen needs for his e.

His stacks of charges could be changed to explode at 3 stacks dealing bonus damage.

Also his ult should automatically stun any enemy caught in it because that's what it does anyway.