Raging Hatred

The yellow-robed monk's hex art was famous in the Three Realms. It was named the 'Nails On The Head, Seven Swords.' It was a mystic art whose name could change the look on any cultivator's face in the Three Realms. It was considered the strongest hex art in all of the Three Realms. Although it was said that the Magi were good at hex curses, everything they had was still inferior to this mystic art.

Even the book that contained this mystic art, the Nails On The Head, Seven Swords Book, could be used to curse mighty figures to death!

With the him being the creator of the mystic art, he obviously used it to its full potential.