Talk:Lost World/@comment-35971426-20181129205334/@comment-33052195-20181130230752

For starters, it's common sense, as the difference in cardback signifies that they aren't to be mixed up together. Secondly, it's part of the rules to use different sleeves for lost world cards in order to make sure they aren't mixed up. thirdly, the rules state that only Lost Cards can be put into a lost deck. Finally, there's official rules state that omni lords or "Emblem of Omni Lords" aren't able to be put in the lost deck, and they have the same wording as gargantua dragon.