According to the guide, Pokmon card value shifts frequently based on special events, social media trends, and recent sales that can drive up demand overnight
Specifically, it does so by using Book of Taiyou in combination with The Shallow Grave or Book of Moon to repeatedly trigger Cyber Jar or Morphing Jar several times in a single turn
While in the early days of the games existence you could get away with throwing your strongest monsters together with enough Equip Spells and staple cards to keep them on the field and have a chance at victory, nowadays a deck without the synergetic qualities of modern archetypes like Vanquish or Unchained will struggle to find any level of success
However, actual selling prices can vary based on card condition, buyer demand, and timing
Which packs are you planning to open
For most decks at the time, the support was underwhelming and so the popularity of the cards suffered as a whole