User blog comment:Munster Bunny/Quirk Creation Blog/@comment-38891524-20190401144240/@comment-38646640-20190401152833

I think another effect of this quirk is that changing the pitch or magnitude, the person being affected should have mild deafness for a short amount of time, and a weakness of the quirk could be that he/she has to charge up the whine before using it meaning there’s a window of opportunity for the opponent to attack. But they can use it in shorter bursts but obviously with less damage. And also with training, I think that as the user develops, the vibrations affect them less, and they can change the pitch/magnitude to higher levels when trained. And finally a super move to complete would be like where the user emits the whine which encircles the opponent and leaves them inhibited for a few minutes where their hearing and awareness will be at a deficit so the user can beat the opponent.

Not sure if these are good but use the, if you can