The Berserkers are the no good, rotten, bloodthirsty pirate crew that operate along the stretch of coast that includes Wyndhaven harbor (and their base is hidden in an ocean cave not far from there). They stand as the counterparts to the gentlemen privateers who sail the Crimson Gale.
They are based unabashedly on Captain Hammerhand and his crew of ThunderCats fame (although only Hammerhand for sure is a direct analogue; Top Spin and Ram Bam are kind of stupid).
The initiation into the Berserks requires incredibly strength, stamina, and insanity. The applicant must make his way onto the Berserker's ship (not yet named) alive, last through battles against various members of the crew, and then survive The Drag. Still bearing the wounds from the fights, the applicant is scourged by Captain Hammerhand and then his wrists are bound with thirty yards of rope. He is then tossed overboard with the tail end of the rope secured to the back of the ship. Salty seawater burns in open wounds and the blood attracts sharks. One hour later (if they remember), the crew hauls the rope back onboard. If the applicant is still attached to the end, and still alive, he is a lifelong member of the Berserkers.