private void removeDemonicSkills() {
_player.removeSkill(_skillId);
_player.sendSkillList();
}
/**
* Rebind the passive skill belonging to the CursedWeapon. Invoke this method if the weapon owner
* switches to a subclass.
*/
public void giveDemonicSkills() {
_player.addSkill(SkillTable.getInstance().getInfo(_skillId, _currentStage), false);
_player.sendSkillList();
}