User blog comment:BoltOfSpades/Kole, Piltover's Eyes/@comment-25235491-20151127093817

Contrary to others, I wouldn't say the kit is underpowered per se, but it is unbalanced.
 * Passive: Somewhat useless. Once again because enemy trajectory is kinda predictable already.
 * Q: Lacks damage, has too much slows. Also, I'd need to know its range.
 * W and E: Yeah, I put them together because you are going to use'em together for max attack speed plus on-hit that adds stacking free damage.
 * W alone though is kinda useless. To get max stacks, you need to get 10 autoattacks off in 5 seconds. That takes the entire duration of the buff to get to 10 stacks, not to mention you'd need to tunnel-vision pretty hard to get there. The absence of scaling is also kinda... welp, weak.
 * Please note, I'm considering amplifying autoattack damage means W's damage is physical.
 * E is what makes the combo potentially broken. 4 seconds of maxed-out attack speed, at level 1. Yes, it's champion-targeted, but late-game, 50% of the time you're going to shit on someone's day. I think it's the risky part of the kit, the one that could make the champion busted.
 * R: The ult isn't very useful. Except from the fact that it can stay pretty long and can allow Kole to get a lot extra vision. But does this key vision addition make due for the fact that he has no damaging ult? Well, with his E-W combo, I can say yes as long as it's a 1v1, but otherwise, no.