Deviation
de·vi·a·tion
/ˌdēvēˈāSHən/
(Noun)
1. The action of departing from an established course or accepted standard.
2. The amount by which a single measurement differs from a fixed value such as the mean.
With premature magical abilities, involvement in a war against vampires, and a crush on a guy that can control fire, Gina Wells fits the definition of deviation perfectly.