Using the Spirit Penetration Art, he had a quick and rough look through the 990,000 spirit designs. 

First, he saw the spirit designs controlling 10,000 Immortals Palace. Around 10,000 Immortals Palace, there were 100 elite Heaven and Earth Spirit Designs. The control over these designs were all within the Yan Huang Dragon Insignia. Once Wu Yu familiarized himself with these spirit designs, he would also gain the control of the 100 spirit designs. Within 10,000 Immortals Palace, he would be invincible. 

Those Heaven and Earth Spirit Designs included the Crimson Sea World Furnace Design, the 30,000 Blazing Sword Qi Design, the Eight-Dimensional God Purging Design, and others. 

There were a lot of other minor designs, including the spirit designs over all structures of 10,000 Immortals Palace that allowed him to adjust the lighting and temperature. In fact, there were also spirit designs over the concubine residences, allowing Wu Yu to bring whoever he wished to himself to sleep with him. 

All of these were just a portion of the total.

The second portion was the spirit designs for the royal city and the Immortal's Capital. However, Wu Yu believed there were other objects that could control the spirit designs in...