yugioh phantom nightmare booster box packs at my Walmart (other areas may vary) : r/yugiohshowcase a new Rank 4 Xyz/Pendulum Monster and a Link Phantom Nightmare | Yu-Gi-Oh! Wiki

Its also hilarious to put Emrakul or Atraxa or Griselbrand onto the battlefield with it

All purchase decisions are based on your understanding of the above

So it was on some people's radars, but not enough to see egregious price fluctuations

Between this slot and the foil-etched rare or mythic rare slot, you will always get one foil-etched global Mystical Archive card and one foil-etched Japanese alternate-art card

attach this card from your GY to that Xyz Monster as Xyz Material

This makes the Top free and allows you to play it from the top of your library, drawing your entire deck and generating plenty of storm to win with Aetherflux Reservoir or Tendrils of Agony