Hi guys, I've got some spare skill points left and i'm not sure if waterball is worth getting.
From what I've been told its super useful for MVPing but besides that I don't know where else you can use it. Maybe Stings but firewall + MS (or firebolt lv10 if there is only one) can take care of them pretty easily.
The other option I have is getting frost nova for a freeze that is even faster than SG lv1 and that can freeze water monsters as a bonus. Or getting LoV though i'm not a fan of that skill.