So this effectively is a monotype, but multiple types are allowed for certain groups (like colorless) but not for others (like fire)?
Another question: We all know that Charizard is a Fire card in TCG. But, since Flying types are represented by colorless (as are Dragons) would we be allowed to use him for colorless too, despite the lack of a colorless Charizard TCG card?
If I understand it good, you can use Charizard, because of his second typing which is flying and flying is in the colorless group, despite the lack of a colorless Charizard.
YES :))