Ceremony
"Since it doesn't use mana, it consumes stamina to enhance one's physical parameters. Usually, one would need medicine to be able to increase their capabilities like that," Rain thought. "However, that guy had so much control over his body that he could push his body beyond its limits just like that with his own will. It is some kind of doping effect."
Sports organizations and governing bodies often ban these substances or techniques due to the unfair advantage they can provide and potential health risks, such as Anabolic Steroids. These are synthetic variations of the male hormone testosterone. They can increase muscle mass, strength, and endurance, but they also have significant side effects.
Stimulants as well. These substances, like amphetamines or caffeine, can boost alertness, energy, and focus. They may increase heart rate and blood pressure and can have dangerous effects on the cardiovascular system.