What is with the Broken Blade Discipline

[icefractal]

No other appealing qualities? Mysterious Stranger has a reason to pump Charisma! I'm sort of joking, but sort of not. Having a good bonus to social skills is often the key to a lot of spotlight time, more so than nominally more useful abilities that get resolved without interaction.

Anyway, I've not found their actual damage that much more than other competent martial types like Barbarians or well-equipped Monks (moderately optimized, in all cases). The different is that while those classes can usually be hard-countered, Gunslinger mostly can't. It's the Mailman of non-casters.