Dybbukim are evil spirits that possess and control humans. (image from http://www.dailymail.co.uk)

Nixes are water spirits who lure people to their watery graves. (Painting by Arthur Rackham, image from http://www.wikipedia.org)

The guytrash is a malevolent creature with eyes like burning coals that haunts solitary roads. (image from strangeaccounts.tumblr.com)

Wyverns are evil mythical creatures that closely resemble dragons.