Weather Ball

The Weather Ball was the most important invention on Weatheria it is said to grow on a garden on weatheria. Nami stole some of the weatherballs and when she returns to train in weatheria she ask Haredas how does this item works and ask if it could be turn into a weapon in which haredas replied not to say such dangerous words.

History
Nami was caught stealing some weather Balls and this caused her to be imprisoned. After she comes back to train on weatheria she ask haredas if it could become a weapon and he replies with a shock.

Haredas was shown with a Weather Ball and it looks like a fortune teller ball with some lightning inside.