1st edition shadowless base set booster box Here is a little knowledge

The set featured the debut of many mechanics that would influence gameplay for years to come, making it a significant part of the games evolution

Their special ability involved generating Mecha Phantom Beast Tokens which allowed them to activate the effects of their monsters

The Detective Pikachu Treasure Chest will mostly appeal to fans of the movie as most of the packs inside relate to a movie and not to any particular set, but it does include two booster packs from the Sun and Moon generation

Ability Aqua Tube Each of your Pokemon that has any Water Energy attached to it has no Retreat Cost

some could even be considered the best of the monster type