Overall, I think Lucian unique identity as a mobile adc was stolen by Kalista. He no longer has that niche and I feel he needs not just a buff in numbers, but a conditional mechanic that would make him stand out from the other adcs. Because, he has a little of everything, but is not that good at anything.
So, on another post about Lucian, someone suggested that Lucian is a light slinger, so shouldn't his w have a blind? So as you're all thinking, thats' sorta Quins thing.
But the way I thought it could be different, is, enemies that are facing his w when they get hit, get blinded, and enemies with there back turned to his w, dont get blind. Also this would not be the same blind as quin. It would be more like graves smoke shot where the entire screen of the blinded victim would go white for like 0.5 -1 seconds.
This would help lucian get a unique identity and give him conditional utility. On the other hand it might just be straight op.