Pokémon GO: Dynamax Gastly Max Battle Guide (Max Mondays)

Generation One Ghost and Poison-type Pokémon Dynamax Gastly makes its return to Pokémon GO as part of the weekly Max Mondays event, providing trainers with the opportunity to earn one of the game's true powerhouses. Gastly was released in its Dynamax form last year, and its final evolution Gengar is one of the strongest Dynamax Pokémon currently available in Pokémon GO.