Hey friends, I was just curious as to what you folks think the price of a pop 1 of 4 2015 Black Star Promo Ancient Origins Staff Gyarados in a PSA 10 is? A PSA 9 sold for approximately $300 last month, tried to gauge off that but honestly not that confident in my assumptions. Any input would be cool, thank you! I also searched the forums and found my post from back in 2017 about the same card, where it was given an approx value of $300, dont think that holds up though 
I haven seen it in eBay… been looking for one though lol. If you are selling… lol