Hate Cards

Hate Cards known as "Meta Cards" (メタカード) in the japanese version of the game, are cards designed to take down specific opponents.

While the cards themselves are perfectly legal and their use isn't considered cheating, their use can be looked down upon, as they are only effective against specific matchups, and using those cards just to beat a certain opponent can be considered unfair play. They are also mostly useless when used against any other matchup.

The Dragon Vanquishing cards are an example of Hate Cards, they only work when used against Dragon attribute cards.

The character Raremaro is used to explain the effects of using Hate cards (similar to how Katsumi Morikawa is used to show the effects of using an unbalanced deck in the Cardfight Vanguard series, a Trading Card Game also owned by Bushiroad.), as shown when his deck was completely designed to counter Dragon World, but it became useless when it was used against Magic World, resulting on him losing quickly and easily.