Sharra
From Portals of Phereon Wiki
Sharra can be found in water tile events, in tundra portals. Her event consists of her being injured and requiring aid. After healing a bit, she wishes to continue fighting. To recruit her you must choose to help her fight, and win a battle. When recruited she comes with a spear, a helmet and some healing herbs.
Combat wise Sharra is stronger than a regular mermaid with higher base stats and better strength growth.