Ase Ase no Mi

The Ase Ase no Mi (汗汗の実 Literally meaning "Sweat-Sweat Fruit"), as the name indicates, allows the user to gain special abilities throughout sweat.

Strengths
Unlike other Devil Fruits, it doesn't control sweat, but instead, allows those that ate it to increase their overall power after they start sweating. When the user sees a drip of sweat, they unleash a devastating energy wave that, after setting, reveals the user with their muscles completely pumped.

Weaknesses
Such great power implies a geat disadvantage. It doesn't have any physical flaws or power-related disadvantages, but psychological ones. The user, for as dirty as it might have been, after eating the fruit, turns into a germophobe, having a strange disorder for absolute cleanliness. So, it makes it harder to sweat, as they bathe more regularly.