Battle Aura was a form of energy in Western fantasy novels. It was usually considered a powerful magic power that could be used in combat and cultivation. In the setting of battle energy, it was a kind of energy condensed from the body and spirit of a person. It could be continuously improved through cultivation and battle. Combat Aura could be manifested in various forms of energy such as flames, storms, and air. It could be used to attack and defend against opponents. In some novels, battle aura could even surpass magic itself as the main force in battle.