(This was all part of an AU idea, though I wasn't exactly planning on doing anything with this idea. It was all just for fun.)
Toriel, also known as the Flame of Kindness, absorbed the SOUL fragment of Kindness when healing an injured human. She developed the power to heal everything and anything from humans to monsters to even wildlife and plants. She also has the ability to communicate with fauna. Her weapon is a frying pan, which she uses to block attacks and fire balls of healing - or harmful - fire. Her outfit’s floral patterns and apron resembles that of a fairy.