Justice League Dark was introduced as part of DC’s New 52 initiative and featured a roster comprised of John Constantine, Zatanna, Madame Xanadu, Deadman, Enchantress, and Shade the Changing Man. The team was meant to be a Justice League-like group that focused on Supernatural and Magical threats, but it wasn’t actually related to the league in any way. In fact, they really don’t want to be a team at all, but they end up grouping together for the greater good.
