I hope this isn't too "mature" for T/A. I mean, she's bleeding from her crotch, so...
She is Sekhmet of Ancient Egypt. Also known as The Avenger of Wrongs and the Scarlet Lady. She protected the pharaohs and people in battle, depending upon whose side she was on. Her renowned bloodlust somehow turned into her also having to do with menstruation. So here she is, menstruating just for you.