So, Magic: The Gathering is doing a crossover set this summer with The Lord of the Rings. Obviously, the set will include the One Ring:
In addition, the set will have a unique variant One Ring, of which only one will be printed, so only one of this will exist in the entire world:
This is the first time they've ever done a one-of-a-kind printing of a tournament-legal card, so this card is going to be one of the most expensive cards in existence, only exceeded by near-mint Black Lotuses. A collector has already announced a standing offer of over $40,000 for whoever is lucky enough to open this in a booster pack.