2023-24 Upper Deck Black Diamond Hockey Diamond Mine Triple Relics card featuring Auston Matthews, John Tavares, and Mitch Marner of the Toronto Maple Leafs. This card contains three pieces of game-used hockey memorabilia certified by The Upper Deck Company. Key Details: - Players: Auston Matthews, John Tavares, Mitch Marner - Year: 2023-24 - Manufacturer: Upper Deck - Set: Black Diamond - Card Number: DMTR-MTM - Variant: Diamond Mine Triple Relics - Memorabilia: Game-Used Jersey - Team: Toronto Maple Leafs - Condition: Ungraded (Near Mint or better)