I recommend the two novels "Doomsday Plant Metal Master" and "Marvel: I Can Control Metal" to you. Both of them have the ability of the main character to control metal. In addition,"Doomsday Plant Metal Master" was a sci-fi-doomsday crisis novel, which told the story of the protagonist controlling plants and metal to survive and develop in the apocalypse."Marvel I Can Control Metal" was a fantasy-modern magic novel, in which the protagonist controlled metal to improve his strength. I hope you like this fairy's recommendation. Muah ~😗