For a Metal Mage, It Makes Sense That the Forbidden Curse Is a Nuclear Bomb, Right?

This is a different world where demons are rampant and all the people are magicians. Zhou Zheng, who traveled through time, awakened as a gold mage. Other metal mages can only control gold elements, but he can control all metal elements! So: When others build a magic circle and release fireballs, wind blades and other spells. Zhou Zheng built pistols, machine guns and other magic arrays to shoot shells with different powers. When other mages changed their profession to the ice or healing system, Zhou Zheng changed his profession to the physics and chemistry system. "I am a physical and chemical mage. I drive a tank, wear a steel suit, and use nuclear bombs as forbidden spells. Is this reasonable?" "A mage from the physics and chemistry department changed his profession for the second time and became a science fiction department. Is it natural?" "A science fiction mage, the divine spell is a two-way foil, no one objects, right?" When the alien army arrived and prepared to attack the planet Earth, he turned around and saw that his home was gone! Alien Army: "What, do you want servants? Do you want servants who are capable, not picky about food, and speak well?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.