Pricing Snapshot
For Psyduck in Mega Evolution Black Star Promos, the current reference price is $6.58. The 7-day delta remains near neutral at -1.6%.
Current value is elevated versus the 30-day mean ($6.07), by 8.4%. The 90-day window shows a floor near $5.52 and a peak around $8.74 (49% total spread), which maps to moderate-volatility movement.
Rarity classification for this copy is Promo.







