I'm not certain whether copyright would apply to a card game -
The innovation itself is the pack of cards, which would are obviously not under any form of (p) or (c). Whether it is possible to claim Intellectual Property Rights (IPR) on how these cards are used is unlikely.
It would be my belief that, legally (as mentioned below), the only source of binding rights would be to the Trademark (rook) and/or any identifiable developments or innovations associated with the game (such as a branded card deck).