The Pokemon Company has banned a Pokemon card from use in the Pokemon TCG World Championships taking place later this month, but not for the reason you’d think. News of the ban was sent out to Japanese players, and a formal announcement to other regions is expected soon, according to Pokemon news site PokeBeach. Typically cards are banned because they create an unfair game state, allow for an infinite combo, or are just too powerful, but the card in question, a weird new Supporter card from the Unified Minds expansion called Blaine’s Quiz Show, is being banned because it creates a unique issue that could really only happen at the World Championships.
Source: IGN.com Pokemon Bans Weird Card From World Championships for Weird Reason