I used to collect up through generation 2, but I stopped after that. The only game playing that I did was with Pokemon Trading Card Game for the Game Boy Color. I've mastered all those rules and I can play like that. I know the game has changed since then, but there are a few things I need to know. I've been reading up on tournament rules and the such, but I haven't found anywhere that it says which cards are playable. I know they can't have defining marks and all the backs need to be the same, etc, but I don't know which sets can be used. Are only the DP sets used, or can you also use the EX cards? Can you use everything from after WotC on? My next question would be how to get back into the game. Should I buy starter packs from the current set? Wait until the 21st and then buy packs? Forget the starters and just get boosters? Things have changed since I last played. Booster Packs don't seem to be a very good value anymore. One last question. I've seen these yellow packs at Walmart. They contain one Booster Pack and one Promo Card. The Promo is like an Entei from the 3rd movie. Are those promo cards legit?