I am a Thunder Nymph, boom! You are really interesting. I'll follow you, zap!
A small nymph thought to be born from thunder, one of the six elements made by the gods. It carelessly follows things it finds interesting. However, as its thunder body is shocking to the touch, one must be careful near it if only to avoid being zapped. Many Summoners try to capture these as they're said to be able to give special powers to others.
Trivia, Additional Information & Notes
Nymphs are used to evolve units at all rarities. Nymphs can also be used as an ingredient for fusing, providing a base of 504 XP, or 756 XP to a unit of the matching elemental type.