Theres SO MANY factors at play when it comes to these cards, so lets open up the vault and take a look
There is design work done specifically for the base set
You pay the cost, discard that card, then can search your library for a card with the same mana value as the card you discard
Egghead slows down your opponents aggression, preventing one Character other than Monkey D type Characters in your Life Area to reactivate their Trigger and provide extra protection
While most of the cards in the set will have a normal rarity and will likely not be worth too much, a few others will be so rare that Pokmon enthusiasts will pay dozens, if not hundreds, of dollars for them.Although well-preserved classic cards are the most valuable cards in the game, such as a few older Mewtwo cards in Pokmon TCG and the popular Base Set Shadowless Charizard, newer cards are also moving a lot of money
Both feel awful and will let your opponent take control of the board state