Starfire is a DC Comics heroine that has taken several forms. I am using the original female and her story. On the planet Tamaran a civil war had raged for some time between two castes. One was a group of warrior-priests and the other were Lightning Lords (scientists). Since neither gained an upper hand, they both sought proxy fighters from other worlds. The warrior-priests chose the Mygorgs and the Lightning Lords chose the Yorgs. But the foreign troops turned the tables and enslaved the humanoids instead! Starfire was born of two mixed skin color slaves- a yellow father and a white mother. She was a beautiful young slave girl taken by the Mygorg King Sookarooth to be raised free and educated. But upon her 18th B-day he sought her as future mate. Revolted, she fled and was pursued by Royal Forces. Having fell in love with a warrior-priest named Dagan, she was taught how to be proficient with a sword and bow and also learned to track. Dagan and Starfire remained lovers until Dagan was captured, tortured, and executed. Starfire rose up and led a revolt against the Mygorg King, killing him herself and vowing freedom for the planet. In latter DC incarnations, she comes to Earth and has some powers similar to Supergirl drawing strength and energy from a yellow sun.

http://upload.wikimedia.org/wikipedia/en/thumb/1/16/Starfireclassic.jpg/225px-Starfireclassic.jpg