The symbolism of Stanley's aggressive poker playing reflects his real life aggression and violent habits towards women. The poker game also symbolizes the luck and gamble of Blanche's life, as well the dishonesty and deception of the others around her.
Omaha is considered, by some, to be the hardest game of Poker to master. Of all of the different games of Poker, Omaha is for many the hardest to learn to play and the hardest to bluff in. It is played most often at fixed limits, like Texas Hold'em and pot limit.