This 2021 Panini Donruss Optic trading card features Ryan Mountcastle, a talented rookie from the Baltimore Orioles. The card is serial numbered and graded as Gem Mint 10. It comes from the Blue Mojo parallel/variety of the set and is part of the Sports Trading Card category. In addition to its rarity and high grade, this card boasts several unique features that make it a must-have for any baseball card collector. It is autographed by Mountcastle himself and bears his rookie card status. The card number is RRS-RM, and it comes from the 2021 season of Major League Baseball (MLB). This card is a true gem for any sports fan's collection.