Shaymin is a grass type Pokemon that is also part of the extremely rare and powerful Legendary Pokemons group. Shaymin is also known as the Gratitude Pokemon and has the ability to purify polluted areas and turn them into a flowery field. It doesn't evolve but can transform into two Formes. One is the Land Forme, which is what we have today, and the other is the Sky Forme.
Legendary Pokemon - Shaymin Papercraft [goblinguy]