The druids weren't all fighters, not all of them were attuned to the wild nature of the wilderness. As a clan who lived outside of civilization, they endured a harsh primitive lifestyle. Hunting, farming, and living in small camps made of wood and dirt.
The oldest of them held power and the youngest learned from them. Their communities were called circles, with each of them worshiping a part of nature. The circle of the moon focused on the aspect of wildlife, animals who were now slowly overtaken by the monstrosities.
The member of the Moon circle boasted the ability to talk to animals, control them and transform into beasts. This didn't mean they lacked the other spells of druids, they still had an arsenal of nature magic.