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 Los Angeles. Later, while investigating the disappearance, John Constantine found the card game which would go on to aid him in his investigation of the case.