What was added since last DD are basically three things:
* Simplified the poker game. Just 5 regular community cards instead of the poker variant I had in last DD (which was REALLY cool btw). The bet system is simplified as well (no blind bets for example).
* Skills: You can use skills to see other people's cards or change your own
* Tricks: Every player in the table has the ability to mess with the community cards on round start