EmilySophieRose
When Evangeline experiences strong emotions she explodes, literally.
Evangeline's curse is the most desired weapon in Elethoria as the war rages on. This is exactly why she fled through a portal to earth when she got the first chance. She's been on the run ever since, constantly escaping from the ones who only want to use her.
But the longer she spends trying to build a life on earth, the more she realises that she never can. The slightest hint of a strong emotion, particularly anger, and Evangeline begins to glow. Once her skin is alight there's no stopping the flames that come after the spark.
(This was originally for a contest on Hexbound. Now I'm working on the full story based on this one.)