I am doing research on using the erc721 interface to represent a digital good on an exchange. For simplicity's sake, let's say that these goods are a digital representation of a collectible card game (e.g. Magic the Gathering).
It is my understanding that each erc721 token will be unique. But taking the card game example, what if each product is not necessarily unique (has the same functionality)? For instance, if there are 20 of the same card in existence and each is owned by a separate address. Would erc721 be useful for such a situation?
My thinking is that each card of the same type would have a different ID, but the same metadata pertaining to the card's functionality or description. Any input on whether I'm on the right track is greatly appreciated.