Greninja

Greninja is a Water/Dark-type Pokémon known for its agility and stealth. It resembles a blue frog with a sleek, ninja-like appearance, complete with a long tongue that wraps around its neck like a scarf. Greninja is highly skilled in using water-based attacks and excels in speed and evasion, making it a formidable opponent in battles. It is the final evolution of Froakie and evolves from Frogadier.