The Creatures of Grimm, or just Grimm, are monsters inhabiting various parts of Remnant. The Grimm were originally created by the God of Darkness and their current master is Salem. They are described as "creatures of destruction" that lack a soul; hence, they are unable to use Aura. They are also drawn to feelings of negativity - such as envy, sadness, loneliness, hatred, etc. - often congregating on the source of these emotions.