Defeating Dominatrix is required for the Dimensional Warder Badge.
Being the daughter of a famous and universally loved super heroine never sat well with Dominatrix. She rebelled from a very early age and when she hit puberty and her powers kicked in she decided enough was enough. After killing her mother, the infamous Miss Liberty, she started making a name for herself. She caught Tyrants attention and has been serving him loyally, in all capacities, ever since.
- Dominatrix's Praetorians profile for a list of her powers