Ogerpon 

Ogerpon (Japanese: オーガポン Ogerpon) is a Grass-type Legendary Pokémon introduced during Generation IX, in The Teal Mask.

While it is not known to evolve into or from any other Pokémon, Ogerpon has four forms, determined by the mask it is wearing, which also changes its type, each with their own unique Terastallized state.

Ogerpon (Japanese: オーガポン Ogerpon) is a Grass-type Legendary Pokémon introduced during Generation IX, in The Teal Mask.

While it is not known to evolve into or from any other Pokémon, Ogerpon has four forms, determined by the mask it is wearing, which also changes its type, each with their own unique Terastallized state.