Lucian mains, how vital is your W?
>Fires a shot that explodes upon enemy contact or reaching the end of its path. The explosion deals 60/100/140/180/220 (+90% Ability Power) magic damage and marks enemies for 6 seconds.When Lucian or his allies damage a marked target, Lucian gains 60/65/70/75/80 Movement Speed for 1 second.
Beyond the movement speed bonus, I don't see much of a reason why he has this ability. It deals magic damage with rather poor base scaling (imo anyway. I'm sure someone can tell me otherwise, but I don't see this being leveled up for its scaling), scales with 90% of a stat he doesn't build (unless it's AP Lucian), and gives him some poke range for a short range ADC.
To me this ability feels a bit unneeded on his kit. But I don't main him (I play him sometimes) so I don't know.