Registeel is a Legendary Steel-type Pokémon from the Pocket Monsters series, known as one of the three Legendary titans alongside Regirock and Regice. It is an ancient, mysterious Pokémon said to be made of a strange metal alloy. In the anime, Registeel appears as a powerful, rare creature that challenges Trainers and highlights the mythic side of the Pokémon world. It has a stoic, robotic appearance and is often portrayed as nearly indestructible, emphasizing its role as a formidable guardian-like figure.