[@Redstring]
Magus is actually a class from Pathfinder, which is a game very similar to Dungeons and Dragons. Ninja is also a class in it, and in PF, Ninjas actually have inherit supernatural abilities. With [@GrafRoy Zeppeli]'s approval, maybe you can just give Pauline powers from it.

It's a lot to read and can be off-putting if you're not versed in it, but give [url=http://www.d20pfsrd.com/classes/alternate-classes/ninja]this[/url] a skim if you're interested.

Also, waiting on your reply to the support convo~