yoshibombers

Honestly, there is no deck that will never be beaten. Many people mistake Yu-Gi-Oh! For one of those "I'll load my deck with strong cards!" kind of game. While I agree that strong cards do make a difference, they can be utterly useless if one doesn't employ strategy into their duels/decks. It makes no difference how good your cards are if you can't use them right. If you wanted to cheat you way to the top however, you can use this code: D21C31BE 0100AA00 121C31BE 0000EA00 (no card limit, e.g. 5 card deck *Exodia*). I only ask that you don't use this to try and gain a good rating via wi-fi. Trust me when I say that some people will not ever duel with you again and your bad reputation will spread and then nobody will duel on wi-fi. I think I've pretty much answered your question, but just in case: Find cards that work for you and with you, and put some strategy and thinking into your game. It makes a load of difference.

Yugiohfreak98

Ya dude, every deck is going to be beat once or twice. There is no deck that can't be unbeatable. But, you could make a deck of monsters that make them unbeatable in battle or a cloudian deck, that's all.