It takes a special kind of person to master both. The last one who had that I know of is the old sage Tellah, and he passed on a bit ago. [Others want to achieve it, of course, but none had yet, so Edge shrugs.] But you're right, our ninjutsu is far more suited for battle than even average black magic. It may not be as strong, but it rakes the battlefield swiftly and we can still fight with steel as well as spell!