Justice League Dark (or JLD team) first appeared in the September 2011 issue of Justice League Dark #1 featuring such superheros, mostly occult and offbeat, as John Constantine, mystic and fortune teller Madame Xanadu, Deadman, Shade, the Changing Man, and Zatanna.
Given their powers, they typically handled situations outside of the scope of the traditional Justice League, which includes Wonder Woman, Batman, Superman, Aquaman and The Flash