Morrigan O'Shea was born to a family of banshees. As a child, she was able to see and communicate with the dead. When she was five, her parents were killed in a raid on their village. Morrigan was able to warn the other villagers and they were able to escape. This is when she realized her powers could be used for good. Morrigan trained with the other banshees and quickly became the most powerful one in her clan. She regularly used her powers to help others, both human and supernatural. She became known as the Banshee of Mercy. One day, a group of bandits attacked a caravan carrying a valuable cargo. Morrigan happened to be nearby and used her powers to scare off the bandits and save the day. For this act of heroism, she was proclaimed a hero by the people of the kingdom.