Speak to a Darkspear Jailor, then enter the proving pit and kill a Captive Spitescale Scout.
Ya done quite well for ya'self, <class>. I'm sure I could teach ya a trick or two here and dere, but I not be wastin' ya time on tiki targets no longer.
l put one last trial before ya den, mon. Head over to da provin' pit in the middle of dis area and fight a real baddy - one dat wants ta kill ya back. Just let the jailor by the pit know when ya ready.