Win duels in order to make extra money so you can buy more cards for your deck. Use the deck you have to win any duels. Be sure to only battle low-ranking characters so you can beat them.
"Yu-Gi-Oh! GX: Duel Academy" is a Game Boy Advance game that allows players to take part in Yu-Gi-Oh! card battles while attending a duelist academy. In the game you can buy various cards to build your own decks. A good deck in “Yu-Gi-Oh! GX: Duel Academy" is a personal preference of different monsters, magic and traps. You should also add some fusion cards to your deck to complement the cards you already have for more powerful attacks.
Purchase five to 10 different magic cards for your deck such as Black Pendant, Dark Door and Shallow Grave.
Buy at least 15 to 20 monster cards such as Earthbound Spirit, Dark Magician Girl and Buster Blade.
Purchase about five different trap cards such as Magic Jammer, Ring of Destruction and Dragon’s Rage.
Buy fusion cards that can be used with the cards in your deck. Which cards you buy will depend on the cards you have.