// Packs is used to decide what unlock packs to include in this CompositeUnlockPack.
public override List<UnlockPack> Packs => new List<UnlockPack>
{
    (CompositeUnlockPack)GDOUtils.GetExistingGDO(ModularUnlockPackReferences.FebruarySpecialCard),
    (CompositeUnlockPack)GDOUtils.GetExistingGDO(ModularUnlockPackReferences.HalloweenCards)
};

// UniqueNameID is used to generate the ID of the GDO. THIS MUST BE UNIQUE!
public override string UniqueNameID => "My Cool GDO";