Neo Discovery

Neo Discovery is a 76-card expansion set released for the Pokémon Trading Card Game in June of 2001. The set is based on the Neo series of the Pokémon video games, focusing on the search for the mysterious unknown Pokémon Celebi, the titular Neo Discovery. This set marked the first major expansion of cards since the Game Boy-based TCG debuted in the United States, introducing many new and exciting cards including Holon's own peculiar breed of Pokémon-EX, the ultra-powerful Colorless-type Pokémon.

The set also introduced a new type of card, the Pokémon Prime. These cards featured a holographic-like background and only the most powerful Pokémon could become Primes. These cards also featured the new "holon energy" symbol along with their regular attack and retreat cost. This symbol acts as both a powerful source of energy and can even unlock special effects when certain holon energy cards are placed in the Holon deck.