FAQQ: What's this with unupgrading parts of the upgraded deck, but not upgrading the unupgraded?A: Well, if you for example have the entire deck for the upgraded Seism deck, except for that one Silurian Dragon, then you can simply use that one unupgraded. The reason for not allowing any cards to be upgraded from the unupgraded version is to prevent things like using Light Towers in Morte to get faster Light quanta.