The question on every One Piece enthusiast's mind is: which episode does Luffy use Supreme Haki? This article aims to provide an in-depth analysis of Luffy's journey with Haki, specifically focusing on his utilization of Supreme Haki.

The specific episode where Luffy prominently uses his Supreme Haki is episode 867, during the Whole Cake Island Arc. As he confronts Charlotte Katakuri, Luffy unleashes his powerful Conqueror's Haki, showcasing his impressive abilities and solidifying his position as one of the strongest characters in the series.

As the series progressed, Luffy continued to develop his Armament Haki, which he first used during his fight against Vergo (Water 7 Arc, episodes 629-746). This marked a significant milestone in his Haki development.

In this episode, Luffy's Supreme Haki clashes with Katakuri's, creating an intense and visually stunning scene. This marked a significant moment in the series, as Luffy's growth and mastery of his Haki abilities became apparent.

The elusive Supreme Haki has been a topic of great interest among One Piece fans, particularly when it comes to Monkey D. Luffy. Throughout his journey, Luffy has demonstrated remarkable growth in his Haki abilities, eventually mastering his Supreme Haki.

However, it wasn't until the Dressrosa Arc (episodes 629-746) that Luffy began to gain more control over his Supreme Haki. During his battle against Doflamingo, Luffy's Supreme Haki manifested, causing several people in the surrounding area to pass out.

One of Luffy's earliest displays of Haki was during his battle against Buggy the Clown (East Blue Arc, episodes 24-41). He used his Observatory Haki to sense Buggy's presence and anticipate his movements.