RizeGreymon #BT21-044 is a card from the Digimon World Convergence set, classified as an Unknown rarity. Currently valued at $0.20, this card appeals to collectors seeking to complete their sets or enhance gameplay. Although it may not command a high market price, its unique attributes and role within the game contribute to its appeal among Digimon enthusiasts. Grading data suggests it remains accessible for collectors at various levels.