The Pokemon Trading Card Mystery Pack 2021 by MJ Holding contains 24 cards and 1 foil card, all sealed in a standard size blister pack. The pack is specifically designed for the Pokémon TCG game and features cards in English. With a total of 25 cards provided, this mystery pack is a great way for collectors and fans to expand their card collection with a mix of various Pokémon characters and designs. The manufacturer, MJ Holding Co., ensures quality and authenticity of the cards included in this pack, making it a sought-after item for enthusiasts of the Pokémon TCG game.