But exactly because of that,
He Song found himself quite envious of the existence of such spirit elixirs.
The Nine Revolutions Spiritual Marrow Elixir, used to enhance the cultivation of Gold Core Cultivators, was by far more potent than ordinary spirit elixirs, often several times stronger.
Inherently, such elixirs were also extravagantly priced.
They were at least twice as expensive as the spirit elixirs available in the outside world.
Yet the materials required for the refinement of the Nine Revolutions Spiritual Marrow Elixir were not exceptionally expensive.
Indeed, they were only somewhat pricier than those for other spirit elixirs in the outside world.
Under such circumstances,
if He Song could maximize the success rate of refining the Nine Revolutions Spiritual Marrow Elixir, then the number of spirit stones he could earn would likely far exceed his past profits.