Amnesia is a Psychic-type move with no power and perfect accuracy. It sharply raises the user's Special Defense by two stages, making the user much more resistant to special attacks. Originally introduced in the first generation of Pokémon games, Amnesia has been a staple move for boosting special defense, often used by Pokémon with high Special Defense or those aiming to endure longer in battles. Though it has no offensive capability, its utility in increasing a Pokémon's longevity and setting up for more strategic plays makes it valuable in certain contexts, especially within competitive play.