User blog comment:ChrysieeBoo Lovely/Topical Question of the Month: Ninja-Wizards on the Wiki?/@comment-5879271-20140325140639/@comment-5137743-20140325142012

There is nothing in the books or films which has any martial arts or similar blended with wizardry is what I meant, Jay.

Ninjitsu, correctly practiced, involves a degree of materialism, praticality and a moral grey zone none of which have any similarities to the world of HP. The Japanese wizards mentioned are nowhere said, in canon, to have performed anything like ninjitsu.