Zoro will continue to evolve in the Final Saga as well, especially since he's still far from his goal of becoming the ...

Many of the strongest Marines appear in One Piece's Egghead Arc, and several of them have used their immense strength during ...

For the longest time, Haki and Devil Fruits have been the primary power system in the world, but there may be something even stronger!

This would also increase the lore around Haki, being the second power-scaling of One Piece after the devil fruit powers, and make it stand out as a power-up enough to dominate the Grand Line.