What episode does sanji gets drawn in the poster?

Sanji is featured prominently in the poster during the "Whole Cake Island" arc of "One Piece," specifically in Episode 850. In this episode, he is shown on the cover of a newspaper after his wedding is announced, which is a significant plot point as it relates to his backstory and the events surrounding the Whole Cake Island storyline. This moment highlights Sanji's importance to the arc and sets the stage for the ensuing drama.