Fawcett's Finest: Club of Crooked Cards

Apparently among the most attractive concepts to form a mob of crooks is making them fashioned after a deck of cards, specifically the top ranking one in a deck.

The New Crime Combine hit the streets of New York City ready to set a plan in motion to take over the cut of the take, only to find themselves opposed at every turn by the World's Mightiest Boy, Captain Marvel Junior. Nevertheless, the group of goons consisting of their leader Black Ace, righthand woman Queenie Hart, henchman King Clubbo, and sidekick Diamond Jack (no, not the hero) try to claim victory from the jaws of defeat. 

Regardless, Junior provides the trump card in his favor, justice! Earth-One's Royal Flush Gang had staying power as antagonists of the Justice League, and Earth-Two's Four Cards of the Joker had... well, the Joker... as its mastermind. And, of course, the Gambler on that world played in the big leagues apart from his card-carrying companions. Compared to that, this crime combine just came up as a spare deck indeed!

There was also a variation of the Royal Flush Gang on Earth-Twelve. This team consisting of King of Clubs, Queen of Hearts, and Jack of Diamonds, proceeded to battle Plastic Man Senior and Junior as well as their sidekicks. After this first encounter they retired from their crooked costumed careers.