Current Market Position
Golduck from Mega Evolution Black Star Promos is currently trading around $0.99. Price action is stable over 7 days, moving only 0.0%.
Versus its 30-day baseline of $1.10, this card is now 10.2% lower. Its 90-day trading band runs between $0.97 and $1.29, producing a 32% range and moderate-volatility behavior.
Rarity classification for this copy is Promo.








