I've been toying with the idea of a
Tenshin Shōden Katori Shintō-ryū
guy with both martial-arts chops and limited Magery or Mysticism abilities, since the style is said to have originated in a vision from a god of thunder, fire and swordsmanship, and could easily involve instruction in magic as well as fighting in a MH universe.
Might involve too much trampling on others' niches and violating the informal 'either Wildcards or cool powers' MH design rule, though, which is why I'm considering other concepts.