If they raise minions, wouldn't they be considered Generals then? Make it "Pirate Captain" or something 
My ideas from this:
1) If Dark gets a Pirate, my knee jerk reaction is Lightside gets a Ninja. Assassin obviously.
if not then.....
2) The Judge
Or Perhaps we should call her Justice?
Yeah, I'm talking the blind lady with scales in one hand, the sword in the other.
It would make an awesome match up for Light vs. Dark 