Shaymin is a mythical Pokémon introduced in Generation IV of the Pokémon series. It is known for its small, hedgehog-like appearance and its ability to change forms. Shaymin has two forms: the Land Forme, which is green and resembles a small animal, and the Sky Forme, which is white and has flower-like features, allowing it to fly. Shaymin is associated with nature and is often referred to as the "Gratitude Pokémon." It has the ability to purify the air and soil, making it a symbol of renewal and healing. In the Pokémon games, players can obtain Shaymin through special events or by completing specific tasks.