Gastly evolution, with its spectral presence and mischievous grin, is a fan favorite in the Pokémon world. Gastly, the first Pokémon in the line, is a creepy but adorable purple cloud that embodies the spirit of Halloween. But this ghastly cloud has a hidden potential, evolving into the powerful and playful Haunter and the infamous Gengar. This article delves into the fascinating evolution of...