Board Thread:General Discussion/@comment-101.160.173.208-20130420133315/@comment-26397825-20151209002359

She's from Atas, which seems to be a snowy place. "Kill it with fire" would be an appropriate reaction, since all the snow would keep the fire from spreading anyway. So she resorted to her instinctive element for dealing with Grimm, and didn't think about her environment.

If you notice, she hasn't used fire since, which kind of implies she's learnt about forest fires being a big risk when using fire dust in Vale.