Poker is a collective term for various card games. It encompasses Texas Hold'em, Omaha, Stud, Razz, Badugi, Short Deck, and other game variations. Each has branched into its own forms. A prime example is Omaha, with its pot-limit, five-card, six-card, and hi-lo versions. Draw poker is also included in this list. Let's discuss the game rules as seen in Westerns.