Secret Rares, full arts, and alternate arts from special sets often hold the highest value
Heck, theres a Kingdra ex from Shrouded Fable that does 50 damage per Water Energy attached, where its fairly simple to get six Energy on board
While popularity and visuals play a role in this card's pricing, rarity also plays a role, as this card is incredibly difficult to find in good condition
The first starter deck is an Amber-Ruby deck that features Treasure Planet and Winnie the Pooh characters decked out in pirate gear
Juju Bubble Juju Bubble is notoriously bad, and its also infamously common in older collections
Codes are delivered on the platform rather than sent to you via email to prevent codes from getting lost in junk folders or automatically flagged as suspicious by whatever email service you use