She's one of my Wild Sprites. She has to be able to use all four of them, but we'll tone her power levels down a  bit to say novice level perhaps even lower since Earth's elemental energies would feel different to what she is used to. It isn't her homeland which is surrounded by pure elemental energies after all, so naturally she would not be at full strength until she develops a little more or adapts to planet Earth. 

Deuce was a member of one of the Elemental clans so he only exhibited a connection to one Element.