Had an interesting idea for Urshifu that she wants to join the AWC. Since she is not a psychic or ghost type anal is not that effective on her BUT if she is trained in the ways of "SEX FU" she would want to keep training to improve her sex skills and that would include her butt. Lugia would be happy that a legend that is not psychic or ghost type wants to learn more in the "Way of the butt" and join the class.
If Urshifu does train in "sex fu" she could have both the water and dark type on her since it can be the middle ground of the path of darkness and water. She could like anal more than Darkrai.