GS Ball

The GS Ball is a special Pokéball used to catch Pokémon associated with rare events or locations. The distinctive yellow design, along with the embossed "GS" on the surface, signifies its legendary status.

It is most notably known for its connection to the mythical Celebi, a Pokémon tied to time-traveling events. Although it was not originally available in normal gameplay, it has become a collector's item among Pokémon enthusiasts.