Talk:Sona/@comment-24971427-20171213042424/@comment-5256197-20171213095224

I'm guessing her W is just to encourage offensive interactions. After Nami, Riot made a point to have all pretty much all healers have some combat component to their heals.

The AP waste is just a matter of perspective. You could also say that Nami wastes the double heal and damage portion when just healing, or Rakan wasting the heal altogehter when killing minions with Q.