Is it wrong that I find that pool ball bit to be one of the worst examples of comic book science ever? Sound does not work that way. Shiva would have a hole in her hand if the ball was hit with enough force to shatter it that badly. Does she just generate forcefield that directs the sound where she wants it to go and stops it? I know it might serve the character well, but sound waves aren't a precision weapon. It's like using a fire hose to soak a sponge and being surprised when other things get wet.