As you normally only get around 3,000 DP for winning a duel, and it takes far longer than 10 seconds to win most duels. This means that the fastest ways to farm cards in the game involve simple starting and immediately surrendering every duel. You will be rewarded with a small bundle of DP, around 1,000 per duel, and a random card award from your opponent’s deck. The game will end the duel when you confirm it.
By going into any duel, placing the cursor over the deck and pressing A, a Surrender prompt will appear.
There are so many packs and cards though, that it makes it much harder to target your farming efforts. You have to play duels to earn DP, then spend that DP in the card shop to get more cards. The biggest annoyance in the game is the grindy nature of earning new cards. As we pointed out in our review of Yu-Gi-Oh! Legacy of the Duelist: Link Evolution, there’s a big problem with the game.