Magic extended: Nothing can channel magic in a region that has a higher concentration (density) of magic. To direct magic in that region, the amount of magic channeled must be greater than the density of magic in that region. This is why a majoo cannot perform magic inside a living being. A ryiomagnetic field functions in the same way as an electromagnetic field, and is formed from a constant current of ryions. Ryiomagnetic fields mimic the behavior and shape of magnetic fields. They can attract certain materials. There are ferromagnetic elements specific to magic.