Quark Drive(JPJapanese: クォークチャージ) is a Pokémon ability introduced in the ninth generation. It is the signature Ability of the futuristic Paradox Pokémon with the exception of Miraidon.
Description[]
When a Pokémon with Quark Drive is on the field and Electric Terrain is active, or the Pokémon is holding Booster Energy, its highest stat (other than HP and taking into account stat stages, but not held items) is increased by 30%, or 50% if Speed is the highest stat. Quark Drive will activate even if the Pokémon is not grounded.
Electric Terrain will activate Quark Drive before a held Booster Energy, so the Booster Energy will not be consumed if the Pokémon with Quark Drive is on Electric Terrain.
Skill Swap and Doodle fail if either Pokémon has Quark Drive. Worry Seed and Gastro Acid will fail if the target has Quark Drive.