Starting off with the most simplistic of decks, you attend class, establish relationships, and duel everyone in sight in order to earn cash, cards, and levels, all to build up your stash. As the name implies, the other important aspect is finding a tag partner, which you'll need once you reach the big Tag Force tournament. Therein lies our biggest gripe - your tag team partners will make far too many questionable decisions with no override ability. Finding a good partner is the key to success - but figuring out just who that is may drive you to the brink of madness.
Dueling is, naturally, the heart of the game. Its presentation is impressive enough, although we could have done without the overwrought and unskippable cutscene animations each time your opponent draws, summons, or otherwise executes a move (thankfully, you're not forced to watch your custom character do the same). Yes, they're short, but when in the middle of a 30 minute or longer duel, they quickly become tiresome.
While there's no internet-based online multiplayer (although ad-hoc is supported), Konami is promising the ability to download cards and recipes. There aren't any available as of yet, but when they arrive they'll certainly be of interest to completists and collectors everywhere.