Decidueye GX - SM37 is a Holofoil variant from the SM Promos set, classified as a Promo rarity card. Currently valued at $7.07, it has experienced a 2.2% price increase in the past 24 hours and a 6.0% rise over the last 30 days. With 103 copies graded by PSA, the card holds a gem rate of 17.5% for achieving a PSA 10, making it a notable addition for collectors.