There's more customizing to get to yet—the combat maneuvers you pick, as well as the explore-y class features, can bring the last bits of definition you're looking for I bet. As for other options like Pedantic mentioned Exalted Athlete is solid, and I could even see Trapsmith working out to be a fun take on it (or Investigator). What'd be REALLY dope is getting your entire party into the action as a
team of ninja.
Except for the ratling with a few bard levels to dole out some healing, obviously.
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