@Chrona The stick's only ability is attack of the shadow. if it's dark out, or if you're going against someone who's physically stronger than the person using the stick (and the stick user doesn't have another weapon), then the stick is only useful for not leaving evidence. The reason they were able to kill Airi Komura is because she was a little girl who could easily be overpowered by those teen boys. And based on what we know, it was probably after he killed the boys. Maybe just touching it is enough.
@rrolo1 this whole series has been about the "power of friendship"... just in a different way. aya goes from a girl who can't stand up for herself to a determined protector because of the friendship and support tsuyuno (and others) provided.
![Stick out tongue :p :p](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)