Chapter 69: The Spear's Ultimate Skill

The pill Astar took was called a booster drug, which was a type of drug that was best effective for Body Strengthening stage practitioners. Booster drugs increase one's physical prowess by pushing their body to its limit or burning one's vitality.

Since the focus of the drug's effect was on one's physical strength, this was the reason why it was best effectively used by a Body Strengthening stage practitioner.

At the Apertures Opening stage, the determinant of one's power was in their stellar energy and not just physical strength. So, booster drugs weren't used by most Apertures Opening stage stellar practitioners. But unlike the Apertures Opening stage, the Body Strengthening stage focused on honing the body and improving it. As a result, physical prowess became the determinant of one's power. This made booster drugs very useful for such practitioners.