Blastoise is a Water-type Pokémon introduced in the first generation of the Pokémon series. It evolves from Wartortle and is the final form of Squirtle. Known for its large, turtle-like appearance, Blastoise has a hard shell and powerful water cannons on its back, which it uses to shoot high-pressure water jets. In battles, Blastoise is recognized for its strong defensive capabilities and versatile moveset. It can learn various Water-type moves, as well as other types like Ice and Dark. Blastoise is often seen as a reliable choice for trainers due to its balance of offense and defense.