Blackfire is a fictional character from the DC Comics universe, primarily known as the sister of Starfire. She first appeared in Teen Titans #22 in 1981. Blackfire possesses similar powers to her sister, including superhuman strength, flight, and energy projection, but often uses her abilities for villainous purposes. Her character is often portrayed as a complex antagonist, driven by jealousy and a desire for power. Blackfire's storylines frequently explore themes of family conflict and redemption, making her a compelling figure in the Teen Titans series and related media.