Watch Yu-Gi-Oh Episode 178 English version online and free episodes. Anime Episode guide, Chapter Yu-Gi-Oh Episode 178 English dubbed A Duel with Dartz (2) Dartz shows the Pharaoh and Kaiba the history of Atlantis, on how the Orichalcos drove them into insanity, and how he lost the wife he held so dear. In an attempt to save his people, Dartz made a contract with the Leviathan and used the Orichalcos to purge mankind, but he was stopped by the three Legendary Dragons and former King Ironheart. Back to the duel, Dartz plays the second Seal of Orichalcos, Orichalcos Dueteros, and summons his four Mirror Knights, each containing the souls of Yugi, Joey, Pegasus and Mai; if the Knights are destroyed, their souls are lost forever. Can the Pharaoh find the strength to continue?