However, Blastoise can learn Crunch through the following methods:
* TM: Crunch is available as a Technical Machine (TM) in various games, allowing Blastoise to learn it.
* Breeding: Blastoise can inherit Crunch from a parent Pokémon that knows the move.
* Move Tutor: In some games, Move Tutors can teach Blastoise Crunch for a fee.
Remember, the availability and methods of learning moves can vary between different Pokémon games.