Pokémon Engineering is a new way to create and edit the Pokémon of your dreams. Though it cannot change the appearance, nature, or gender of your Pokémon, it can completely change their battle style and Moveset. To engineer a Pokémon, you must have access to Eagun’s Lab underneath Eagun Mansion at Battle Park. To do so, you need to have defeated the Elite Four at least twice. There are several steps to engineering a Pokémon: