From the 1999 Digimon collectible card game by Upper Deck, 28 Ikkakumon appears in the core set as card #27 with an Unknown rarity classification. The listing sits at a current market value of $0.00, indicating either extreme scarcity of recorded sales or lack of demand among collectors. Graded population and sales data are limited, so provenance and condition become particularly important when assessing potential value.