Shield of Magnetism

The Shield of Magnetism is a technique that is unique to Mitsuko Akechi. With it, Mitsuko can create an extremely powerful barrier out of, which protects her from harm automatically. The barrier can repel physical attacks, such as taijutsu, as well as weaponry, and — with a change in magnetic charge depending on the situation — is completely resistant to both other forms of magnetic techniques, as well as electrical maneuvers.

Overview
By controlling the barrier with her hands, therefore willingly, she can strengthen a certain area of the shield to reinforce it. With further added will power, the barrier can be expanded to protect large areas and can be used to defend the user against several things. This large scale variation cannot be maintained long, however, due to increased chakra consumption. The true danger in this ability, however, lies in its secondary trait. Anything or anyone who directly comes into contact with the barrier becomes magnetized, thereby leaving them open to a lethal counter attack from Mitsuko's considerable arsenal of magnetic techniques.

Mitsuko compares this shield to the Uchiha Clan's Sharingan kekkei genkai, in that due to her skill with it, she only needs minimal amounts of chakra to maintain the barrier (though using bigger variants or shape variants will increase the cost). That being said, by consciously manipulating the magnetic field composing her barrier, she can change both its shape and density to increase its defensive output, though this admittedly costs her more chakra.

Drawbacks
The magnetic shield isn't entirely impenetrable. While it can resist other magnetic and electrical techniques, and also blocks physical attacks, other forms of combat may work against it:
 * Ninjutsu (outside of those listed above) can penetrate the shield, including a range of other nature transformations.

Trivia

 * Because she refuses to use Shukaku's Shield of Sand, Mitsuko claims that she had to come up with her own and sites this technique as the result of that thought process.