Planet of metal.

Gold Planet is a metallic globe, about 1/400 the size of earth, It's wrapped around by a thick layer of magnetic field, Thunder bolts and lightnings created by the magnetic flux nurtures the land and provides the energy source to the living things. The gravitational force is 1000 times stronger than on the earth's. The mighty powerful Gold Child is commanded to recover the hidden ancient prophecy ____ the technology of weapon making.