The fortress of the wizard Octagon is well armed with energy blaster defenses. In Wizard Wars, the wizard Skullus captured a village of humans and used them to attack the fortress. Thundarr attacked Octagon in his fortress to end the war between Octagon and Skullus. Thundarr defeated Octagon by throwing his energy beast into the converter. While the converter was disabled and Octagon weakened, Octagon survived and his fortress had only minor damage.