Explore how Armament Haki could play a key role in power-scaling as One Piece heads towards its Final Saga.

Monkey D. Luffy is the captain of the Straw Hat Pirates and one of the strongest characters in One Piece. Through his share of adversaries, Luffy has grown more determined and powerful. In fact, at ...

Luffy's next Haki power-up, called Observation Killing, will allow him to reach the level of the likes of Shanks.

This article contains spoilers for the One Piece Series. Haki is king in the One Piece series. It is a power that allows one to use their spirit as armor for defense, or even for offensive purposes, ...