Chapter 1142 of the One Piece manga gave some insight into Loki's true strength, especially with his mysterious Ragnir hammer ...

This One Piece fan theory might have been written by Oda himself to mock us for not realizing Luffy's heritage was confirmed ...

Villains in One Piece range from iconic to scarily dangerous but some completely underestimated the strength of Monkey D. Luffy and paid for it.

Shanks inspired Luffy to become a pirate from a young age and entrusted him with his iconic Straw Hat. Kuina motivated Zoro to become the world's strongest swordsman, leaving a lasting impact on him.