The tomb of a Heavenly Core Realm martial artist would undoubtedly contain an immense number of treasures and profound techniques. Some of these might not even exist within the Martial Ascension Gate.
For instance, the strongest techniques possessed by the four peaks of the Martial Ascension Gate were only at the top grade of the Earth Rank. However, within such a tomb, there was a real possibility of discovering Heaven Rank martial arts, which stood on an entirely different level.
Beyond that, the tomb would likely hold powerful secret arts as well.
Within the Martial Ascension Gate, one could exchange for a fifth-tier secret art using contribution points, but that was already the limit. For someone at Li Yun's current level, such a limit was far too restrictive.
