Hancock uses her Mero Mero Mellow technique to turn Luffy to stone, but it completely fails. Luffy, in his typical oblivious fashion, mistakes her beam for Foxy's "Slow-Slow Beam" and is unaffected because he lacks impure thoughts toward her.
While subtle in this specific episode, the battle begins to showcase the Kuja’s unique ability to hit Luffy despite his rubber body—later identified as Armament Haki . One Piece Episode 412
, titled "Heartless Judgment! Margaret Is Turned to Stone!!" , originally aired on August 9, 2009 . It is a pivotal chapter in the Amazon Lily Arc that showcases the ruthlessness of the Kuja Tribe's Empress and sets the stage for a major battle. Plot Summary Hancock uses her Mero Mero Mellow technique to
Luffy is captured and brought to the execution arena. Margaret , along with Sweet Pea and Aphelandra, steps forward to defend him, admitting they brought him to the village. Despite their loyalty, Hancock shows no mercy and turns all three of them into stone statues. , titled "Heartless Judgment