Episode 851

"The Man with a Bounty of Billion - The Strongest Sweet Commander, Katakuri" is the 851st episode of the One Piece anime.

Short Summary
In the Mirro-World, Luffy begins a fierce clash with Katakuri.

After getting away from Whole Cake Island, the group on the Thousand Sunny mourns Pedro's self-sacrifice until Jinbe tells them to remain focused on escaping Totto Land. They are soon pursued by Big Mom and a small fleet.

Meanwhile, Sanji, Pudding, and Chiffon approach Cacao Island.

Anime Notes

 * The anime adds the following:
 * Katakuri speaking to Luffy briefly before the clash in the Mirro-World starts.
 * Additional scenes of Luffy's fight with Katakuri.
 * The Thousand Sunny landing after using Coup de Burst is shown and afterwards, Brook and Chopper learns of Pedro's self-sacrifice.
 * In the manga, Luffy was told that Katakuri is the strongest Sweet Commander during the clash. In the anime, it is right before the battle starts.
 * The scene of the Sunny group mourning for Pedro is extended.