An Jing's primary objective in visiting Tianyuan was to obtain fertilizer to accelerate the growth of his spirit herbs.
There should be plenty of this fertilizer, and though it came with certain side effects, his understanding of earth vein Qi suggested he could mitigate them. By channeling the power of Linjiang City's earth veins back into Broken Blade Mountain, he could offset any adverse consequences. Thus, he had no need to worry about lingering side effects and could simply choose the most potent, fast-acting formula.
His second objective was to acquire protective suits and specialized coatings for his drones to withstand high-grade toxic Spirit-Evil.
Chapter 397