The way of formations was extremely mysterious. It could be considered complex beyond measure as the smallest change would cause a multitude of effects. Any regular joe would need to spend their entire life studying just to scratch at the surface.
Intermediate formations were on another level compared to basic formations.
At the basic level, Ye Lingchen could only use it to attract the spiritual energy in the area around him with limited range. However, at the intermediate level, the quality of the spiritual energy attracted and its range would be much higher—sufficient to change the Fengshui of a place.
Apart from that, Ye Lingchen's formation had started to take on a shred of the 'imprisonment' properties. He could make a formation to imprison others, or to prevent entry to a certain location.
Its practicality had grown multifold. It was suitable to be used for all sorts of situations.