Episode 811 - Luffy's Supreme Test! The Decisive Clash for the Pirate King's Crown

Episode 811
Luffy’s Ultimate Challenge! The Final Battle for Pirate King’s Throne
Japanese: ルフィの究極の挑戦！海賊王の座をかけた最後の戦い
Rufi no Kyūkyoku no Chōsen! Kaizoku-Ō no Za o Kaketa Saigo no Tatakai

The Straw Hat Pirates destroy the artifact and defeat the elemental pirate crew, but not before uncovering more about the connection between the One Piece and the ancient civilizations. With new clues in hand, the crew sets sail for their next destination, determined to continue their quest to uncover the mysteries of the Grand Line.