C735 Spiritual Weapons of Heaven and Earth
As for the Shadow Accessing Sword, it had the support of the Sword Immortal Technique, and could be said to be the strongest treasure in Lee Xuan's possession. The Thunder Seal was a mid-grade Spirit Artifact, and it was not much weaker.
These three treasures were all treasures refined by the Eastern Earth Immortal. Lee Xuan was able to use them with ease