(dub) 178 : Bursting Slash!: Zoro Vs. Ohm!

The battle reaches its climax in the Upper Ruins. Zoro had been struggling against Ohm’s , a malleable sword made of "iron clouds" that can change shape instantly into a fan, fork, or fleuret. Combined with Ohm’s Mantra (Observation Haki), which allows him to predict every move, Zoro finds himself frustrated and unable to land a clean hit.

Witness Zoro's mastery as he overcomes the Ordeal of Iron with a devastating new technique: (Dub) 178 : Bursting Slash! Zoro vs. Ohm!

Realizing he cannot win by dodging alone, Zoro takes a moment to center himself. He discards his mystery goggles, ties his green bandana around his head—a signal that he is getting serious—and prepares his counterattack. The battle reaches its climax in the Upper Ruins

: Zoro unleashes the 108 Pound Phoenix (108 Caliber Phoenix), a powerful long-range flying slash. The attack is so immense that it cuts straight through Ohm's iron cloud defense and the ruins themselves, knocking the priest unconscious and ending the Ordeal of Iron. Parallel Developments Witness Zoro's mastery as he overcomes the Ordeal

: Nico Robin meets "God" Enel in the Lower Ruins. Enel reveals that he has already moved the legendary gold and demands Robin’s help in locating the fabled Great Golden Bell.

: Luffy, Nami, Gan Fall, and Aisa remain trapped inside the giant snake, Nola. Wyper, the Shandian leader, continues to blast the snake’s exterior with his Burn Bazooka in a desperate attempt to free them.

While Zoro handles the battlefield, several other key plot points unfold: