162 common cards
50 rare type cards
3 Mosaic Rare cards
Each of these new 5 card sets will have one rare card, a Mosaic Rare card, and three additional common cards. The strategy in dueling with these new packs involves that you divide up each pack evenly, and then each duelist will deal with only the cards from each individual new deck, thereby creating their own strategy play when dueling with others. One of the great concepts to keep the Yu-Gi-Oh! game fresh is based on this sort of thing. New monsters and methods for dueling with friends always remains new, keeping the game going on as long as it has been.
Now onto the MANGA, there is a nice review done by the folks at Fandompost recently which will give you a in depth look at the new manga issue for Yu-Gi-Oh! 5D's. The ratings they gave are listed there as well if you just want to quickly know if it's worth checking out or not. Also, for the animated series of Yu-Gi-Oh!, don't forget to check YTV, and The CW, for Canada and United States. You can find the Zexal series, as well as classic episodes on weekends, starting Friday for Canada's network. For more information and new events, you can check out the official site.