Nami is the navigator of the Straw Hat Pirates, and she is easily one of One Piece's most iconic characters. She is not much of a fighter—in fact, she is part of the crew's weakling trio, but she will fight if she needs to. During combat, she primarily uses a special bo staff that can manipulate the weather. Nami does not have a Devil Fruit power, which is unfortunate because there are several that would certainly make her stronger.
Source：https://www.cbr.com/best-devil-fruits-for-nami-one-piece/
