Jokerless. Black Deck. - YouTube

Jokers are special cards at the core of Balatros gameplay. Instead of being included in Decks and played alongside standard cards Jokers are obtained through the Shop and occasionally other means and are held in the players dedicated joker slots until the player sells them or they are destroyed.

Jokers have four different rarities denoting how likely they are to appear in a given run: Common Uncommon Rare and Legendary. In general higher rarity jokers can be more powerful but when a joker has no direct analogue of a higher rarity it can be difficult to determine if it is better.

The Eudaemons – In the 1970s a group of physics students at the University of California Santa Cruz used a computer to predict the outcomes of roulette games in Nevada casinos. They called themselves “The Eudaemons” and made significant profits before their operation was shut down.