Card Game (Earth-1: Pre-Crisis)

A card game is a clue in John Constantine's investigation.

History
At one point, through means tied with Daniel Cerone and David Goyer's disappearance due to the rising darkness, the card game ended up in a dumpster in an alleyway of a city. Later, while investigating the disappearance, John Constantine found the card game which would go on to aid him in his investigation of the case.