Yu-Gi-Oh! Go Rush!!

The Great Prophecy of Nomratdamas (1x18)

:

Yuhi and co. learned that Yuna might be at Badloon Castle. However, the only people who can enter the castle are Duelists who possess the “macho” rank, which is the highest rank in Dueling. So, in order to become macho Duelists, Yuhi and co. visit a colosseum where ruffians gather, known as the Coruffium. Yuhi’s first battle is against a mysterious prophet known as Nomratdamas.