CJ7

CJ7, is the main main character in Yu-Gi-Oh! DX, and was one of the Hearlders. He is headstrong, fun loving, and a talented duelist who loves dueling more than anything.

Decks
CJ7 loves Dueling and believes that all problems can ultimately be solved through it. He keeps going no matter how hard things get or how hopeless it seems, with a few exceptions (though it doesn't take much encouragement for him to start fighting again), although he does sometimes doubt himself. He always shows respect towards his opponents, with a few exceptions, even complimenting them during a Duel.

CJ7 also seems ignorant of the dislike that other individuals have for him, as despite the obvious tension between the two, he considers himself to be good friends with Ben Mason and Leon Crawford. His carefree attitude and lack of thought get him into trouble occasionally.

One of CJ7's common traits is that he tends to make jokes or puns, even in some situations where it is not appropriate. Most of the jokes he makes are Duel-related but on a few occasions he does make jokes at someone's expense.

CJ7 has a close bond with his cards, to the point where he has no problem with an opponent insulting him, but is angered when they insult his cards. CJ7 is also fiercely loyal to his friends, which often results in his risking his life to save them. \

Decks
CJ7 plays a Yang Zing Deck, his "Yang Zing" monsters focus on maintaining field presence by Special Summoning one another when they are destroyed. In addition, almost all of the non-Tuners in his Deck is capable of Synchro Summoning during your opponent's Main Phase or Battle Phase, and give extra abilities to the Synchro Monster that they were used to Summon. He can use the Quick Effect of the non-Tuner "Yang Zing" monsters to perform Synchro Summons during your opponent's turn, choosing to Summon the monster that is more appropriate depending on his opponent's move. This is made even easier by the fact that every monster can Special Summon any other monster of the archetype when destroyed, giving him the ability to summon practically any Synchro Monster at any time (whichever one is most appropriate based on what the opponent has), regardless of which monsters hedraw (as hecan always suicide his monsters into his opponent's if need be).