This was very rare. For a top-notch expert like Chu Yunfan, his demand for spirit energy was very high. Ordinary spirit energy had too much impurity for an expert like him, and there was almost no way to directly use it.
If it were otherwise, spirit stones would not have become a hard currency among cultivators. This was because if they used those stones, they could save more than half of the time needed to refine spirit energy.
Other than the extremely dense spirit energy, Chu Yunfan also discovered that compared to the obscure Great Dao laws of Zhongzhou City, the laws on the Prodigy Battlefield were clearly more active.
This also meant that cultivators would be able to gain insights and cultivate far more than they would in Zhongzhou.
Although it couldn't be compared to the way Chu Yunfan felt the laws' bare manifestation on the board, it was still much better than Zhongzhou City.