[{quoted}](name=Olath Quortek,realm=NA,application-id=3ErqAdtq,discussion-id=lOVFyntQ,comment-id=000100000000,timestamp=2016-01-14T04:32:05.694+0000)
Shrug... It is an effective laning tool in addition to being a boost in extended fights. It is purposely conditional in a way that enforces him as a caster and differentiating him from other marksmen. It is a near constant AS boost in lane the way it is. If they changed it to what you suggest you would lose that for semi-delayed AS boost in skirmishes/extended fights. I'm not saying either one is better than the other... I'm just saying I like it better the way it currently is.
I Disagree it just feels like an effective laning tool. He has enough laning tools in just the bonus damage on his W which makes last hitting with him far easier than most champions in the game. The passive attack speed only helps once he kills the minion and for poking you would be better off getting in a hit or 2 and then detonating it with a quick Q than you would killing a minion then going ham.
If he had the passive i suggested he could poke a hit or 2 and then detonate and if the enemy decided to engage then he has a boost of attack speed already procced for the fight which makes him a bit more competitive when it comes to head to head dueling. In an optimal fight with the passive i suggested he could drop his ulti then Q/E the enemy detonate those stacks gain a boost to his attack speed then quickly stack 3 more blight stacks and detonate them again which would refresh the attack speed boost long enough for him to have time to proc another 3 stacks once he has enough cdr. It rewards good play with the benefits of being able to keep up a continuous assault.
Right now he has to kill a champion to receive a 6 second or a minion to receive a 4 second benefit to his attack speed and then he has to kill another champion or minion to get the bonus to refresh again.
in a 1v1 duel he needs the attack speed during not after the fight. In teamfights it works but its such a short duration that you waste more than half the duration positioning rather than utilizing the passive.