Great Sea Corsair

You can create a Great Sea corsair by adapting the dread pirate prestige class from Complete Adventurer. The prestige class can be used with the following adjustments.

Patron (Ex): At 1st level, the Great Sea corsair must designate some merchant or political entity as her patron. This patron is a person or an organization that the corsair has served in some way. For example, if the Great Sea corsair has been hired by a Dambrathan noble to sink his rivals’ merchant ships, then the corsair can designate the noble as a patron. The corsair gains a +2 circumstance bonus on Diplomacy checks when dealing with her patron. She gains a +2 circumstance bonus on Intimidate checks when dealing with any of her patron’s adversaries, or anyone she is known to have pirated before (as inconsequential as a single ship and its crew to as daunting as an entire nation). At any point, the corsair can switch to a new patron, in which case the circumstance bonuses change accordingly. If the corsair ever chooses to forgo a patron altogether, she immediately takes a —2 circumstance penalty on all Diplomacy checks with anyone the DM deems appropriate, until such time as she establishes a new patron. A corsair without a patron is a mere pirate, unworthy of trust.