The 2024-25 UD Exquisite Tandems Mikko Rantanen Nathan MacKinnon Gold /99 #ET-MR is a limited edition sports trading card featuring ice hockey players Nathan MacKinnon and Mikko Rantanen from the Colorado Avalanche. Manufactured by Upper Deck as part of the Black Diamond - Exquisite Collection Tandems set, this single-insert card is serial numbered and comes in a parallel gold variety. With only 99 copies in existence, this original trading card is a highly sought-after collectible for fans of the National Hockey League (NHL) and collectors of sports trading cards.