Dhrishtadyumna who originated with Draupadi from the sacrificial fire, was an auspicious portion of the deity of fire, Shikhandin was a Rakshasa.
द्रौपद्या सह सम्भूतं धृष्टद्युम्नं च पावकात्। अग्नेर्भागं शुभं विद्धि राक्षसं तु शिखण्डिनम्॥