Board Thread:Speculation House/@comment-12443850-20130808003319/@comment-3257939-20130930193419

How about an hybrid?

The bad guy wants more power so in order to achieve a new level, he fusions himself with a grimm.

The Faunas are hybrids, maybe when they become enraged, they are overcome by their urge and become temporally Grimms who don't know the difference between a friend and a foe.