User blog comment:Prof. Draco/Invent a Wesen/@comment-5914541-20130712211008/@comment-1509826-20130712233406

Interesting, but they would have to jump Nick about two points before they could include those sorts of Wesen, unless they had very specific weaknessess for him to take advantage off. Still guinuin magic is getting a bit more common, and they've already had ghosts and demons so who knows?