Suggestion to give Vel'Koz some deserving love
Make his Q like Nidalle's spear or Zoe's q, where the damage is increased by distance travelled. This would encourage players to shoot Q not always in the direction of the champion they want to hit and the reactivate the ability after for max damage, rewarding the more complex playstyle and skillshots . Honestly, his Q base damage and ap-scaleing are pretty bad for the most difficult skillshot (full range Q) in League, in my opinion. All the indirect buffs like the mana rework or the sucessive assassin buffs are pushing him out of mid lane to be only relevant as a support, so i think he deserves some love.