One theory from these collectors I spoke to as to why investment is so high right now, alongside the fact that Pokemon is printing home-run sets, is the crypto market
This card for Arceus VSTAR was released for the set in a variety of forms, including a special Promo card and two Secret Rare varieties, including the golden card 184/172 and the more colorful 176/172
That last line of text on Deny the Witch is intriguing, though, as it can be a wincon in tokens decks
This keeps the card advantage flowing so you can find more copies of Firdoch Core and eventually set up a combo kill
Acting like a reusable Sabrina trainer card, its Frozen Flow ability lets players switch out their opponent's active Pokemon to the bench once per turn, on top of it sporting a respectable 160 HP and having an 80-damage Wave Splash attack that requires two Water energy