Marvel Scalein Pokémon Polished Crystal

Marvel Scale is an ability that increases the user's Defense stat by 50% when it is affected by a status condition such as paralysis, burn, or poison. This makes Pokémon with Marvel Scale more resilient in battle when they are suffering from a status ailment. You can only find this ability on the Dragonite line. Dratini and Dragonair have it as a hidden ability, while Dragonite can have it as a secondary ability.