The next morning, Li Tian left Blackwater city alone and rushed to moon Spring Lake on the outskirts of the SkyDemon mountain range to meet the flood Dragon King.
The Dark Crystal grass was a treasure among spiritual herbs, and any heaven-grade Alchemist would be tempted by it. On top of that, it was one of the best materials to make the ten thousand spirit pill, so Li Tian naturally wouldn't miss it.
Most importantly, the black crystal grass had a high requirement for the environment it grew in. Not only did it require an abundance of spiritual energy, but it also needed to be nourished by the qi and blood of powerful demonic beasts.
Under all kinds of harsh conditions, the number of black crystal grass was very low. To put it this way, the entire Wan Jian house's elixir peak didn't have any reserves of black crystal grass, which showed how rare it was.