[Well, seeing as it's already been brought up by someone else. She wonders who, actually.]

I've got an excellent sense of the weather; oncoming storms, pressure systems, that kind of thing. Usopp made me a weapon that lets me take advantage of that. [And she'll draw it out of her coat; all three pieces of blue metal staff, laying them down on the table.] Lets me create anything from a mirage to a storm. To rain, actually.

[Grin.]