In Which Episode Does Luffy Use Advanced Conqueror's Haki ((new)) -

Crucially, Episode 1076 also contains the narrative payoff of Oden’s legacy. The episode’s title refers to Kozuki Oden, the only other person known to scar Kaido. By showing Luffy replicating the same “no-touch” devastating force that Oden used—and that Kaido himself used to defeat Luffy earlier—the episode confirms that Luffy has finally joined the ranks of the Yonko-tier fighters.

During their intense battle, Luffy and Katakuri clash, and Luffy's Conqueror's Haki is activated. As their energies collide, Luffy's Haki evolves into its advanced form, allowing him to overwhelm Katakuri's Busoshoku Haki and inflict significant damage. in which episode does luffy use advanced conqueror's haki