I was thinking of like three common enemy types. Excluding undead which I hope to make really dangerous and scary. Next one:
Hornfolk - there are legends of creation of the hornfolk. Some say the evil wizard cursed humans to combine them with their farm animals. Some say angry god wanted to mock people and mixed them with their "slaves". Some even assume farm animal somehow caught some magic and used it to be similar to human in order not to be eaten. Whatever really happened now there are crowds of hornfolk in the wild - with human bodies, but animal legs and hooves, horns and heads of either cow, goat or sheep. And insatiable need to kill peoples wherever they find them.