A Marvel fan transmigrated into the body of a child by the name of Shinki who because of his Magnet Release was put in a genin team with two of the Kazekage's children, and one of them is a bloodthirsty Jinchiruki.
Being a Marvel fan and not a Naruto fan Shinki doesn't know everything about the Naruto plot, but he knows that there is going to be a Fourth Shinobi War in the future, and he needs to become strong if he is going to enjoy his second life and not die as tool for a village that he has no loyalty to.
Shinki knows that only controlling Iron Sand is not going to make him strong enough to archive what he wants, instead he needs to archive power similar to his favorite comic character, Magneto, and lucky for him when his soul merged with the original Shinki soul it made both his chakra and Magnet Release stronger.