Which Episode Luffy Uses Gear 4 Verified

The episode itself is a masterclass in anime escalation. After being launched into the atmosphere, Luffy bites into his own arm—a callback to how he inflates his bones for Gear Third. However, this time, he does not blow air into his bones but rather into his . The result is visually shocking: Luffy’s arm swells to colossal proportions, followed by his entire torso and legs, transforming him into a hulking, bouncing titan covered in dark, swirling patterns of Busoshoku Haki (Armament Haki). The technique is named Gear Fourth: Boundman .

In this episode, Luffy uses his Gear 4th form, also known as "Boundman" (, Gear Fō: Bōndo Man), for the first time in his battle against Doflamingo in the Dressrosa Arc.

Here's a brief summary of Gear 4th:

Here are the specific details regarding the debut and subsequent variations:

Gear 4 is not just one transformation; it has different "sub-forms" that Luffy uses based on his opponent's fighting style. The Mary Sue When Does Luffy Get Around to Gear 4 in 'One Piece'? which episode luffy uses gear 4

To understand the gravity of Episode 726, one must consider the context. Doflamingo, a Warlord of the Sea with a terrifying mastery of the Ito Ito no Mi (String-String Fruit), had pushed Luffy to his absolute limit. Their battle atop the royal plateau saw Luffy’s previous Gears fail repeatedly; Doflamingo’s “Awakened” string powers could slice through an entire city and repair his own internal organs. After a temporary ceasefire involving the gladiators and Trafalgar Law, Luffy realized that standard tactics would lead to defeat. Thus, he sought a technique he had been developing specifically to counter massive, durable opponents: Gear Fourth.

Since its debut, Gear 4 has become a staple of Luffy's combat arsenal, featuring multiple specialized forms for different high-stakes battles. Key Episodes for Gear 4 Forms The episode itself is a masterclass in anime escalation

Monkey D. Luffy first uses in Episode 726 , titled "Gear 4! The Phenomenal Boundman!" . This major power-up occurs during the climax of the Dressrosa Arc in his battle against Donquixote Doflamingo.