Tatsu Yamashiro, known as Katana, is a skilled martial artist and swordswoman in the DC Comics universe. She wields the mystical Soultaker sword, which captures the souls of its victims. Tatsu's life was marked by tragedy when her husband was killed by his brother, who sought the Soultaker for himself. Driven by a desire for justice and redemption, she became a vigilante, joining teams such as the Outsiders and the Suicide Squad. Katana is known for her strong sense of honor and her unwavering commitment to her cause.