The cards that should be banned for use against NPCs: Unhappy Girl Piranha Army Union Attack Gravekeeper's Vassal Gift of the Martyr Secret Pass to the Treasures Mythical Beast Cerberus (That's it's name, right? The one with the spell counters?) I don't have any problem with these being used in competitive play, but the issue is that they are used for farming. The thing about the creation of farm decks is that they limit creative play. "But Anonyboy," you say. "It's completely up to the user as to whether or not they use a farm deck." Well, TOO BAD! Farm decks give an absurd advantage to players with certain cards, and also doesn't force the players to think. I don't care that the deck board exists, one of the main appeals of Yugioh is the ability to make your own deck. Copy-and-pasting other people's decks to get a ridiculous amount of loot shouldn't be a part of the game. Also, raising the drop rate would help, as with a raised drop rate, farmers have no excuse.