(Texas) Hold'em is the most popular Poker variant in the world and is played using a standard 52 card deck. Players must make the best five-card hand with a combination of their hole cards and community cards.
Omaha is very similar to Texas Hold'em with one game-changing factor. Instead of two hole cards, each player is dealt four hole cards. In Omaha, players must make the best possible hand with a combination of two from their hole cards and three from the community cards.