That should be the embodiment of the Nen, which is endowed by the Devil Fruit, but it is only a certain ability, and this ability can become stronger with the exercise, including the Haki should also belong to the use of Mind Force. Therefore, there's nothing called a strong or weak Devil Fruit, the only difference is practicing, and some people who have not eaten the Devil Fruit, such as Mihawk and Shanks, can rely on their Haki. All these are just their strong Nen capability.
![](//book-pic.webnovel.com/bookcover/17387191906766105?imageMogr2/thumbnail/180x&imageId=1594714567320)
One Piece: Super Card System
Anime & Comics · Myriads_Worlder
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