User blog comment:Nuclrdmntr/Hexragon, The Hextech Gunner/@comment-5663184-20121104232118/@comment-131.203.254.146-20121105032810

His W and E also allow you to farm minions, since he has no mana cost on either of those abilities. I see your point though, if they costed mana then laning phase and farming would be quite difficult.