They are innately extremely resistant to heat and fire.
They can heal the minor burns of others, but the more severe the burn, the more energy it drains
They have a telepathic/empathetic connection with nature and other nymphs
As they are nymphs they do not age, remaining eternally young.
They have the ability to release heat from their hands in order to cauterize an open wound.
They have the ability to create and control fire, the larger the flame, or the more condensed, the more energy it drains
They have the ability to shed their flesh and turn into pure fire for a short time and while in this state, the user is granted flight, immune to all attacks and anything they touch is intensely burned
The more upset they are, the harder it is for them to control their powers