One Piece Episode 160 -

Satori demonstrates a terrifying new ability called "Mantra" (later revealed to be Observation Haki), which allows him to predict and effortlessly dodge the crew's attacks.

Robin’s discovery of soil sets the foundation for the arc's major revelation regarding the island's true origin and its connection to the Blue Sea. One Piece Episode 160

The episode's climax focuses on the rescue group’s first encounter with in the Illusion Forest. Satori demonstrates a terrifying new ability called "Mantra"