When it has a lot of HP, the Pokémon forms a powerful school. It stops schooling when its HP is low.
Effect
This Pokémon switches between School Form and Solo Form at the start of battle and after each turn depending on its HP. At or below 25% of its maximum HP, it switches to Solo Form, and above 25%, it switches to School Form.
This Pokémon returns to Solo Form upon leaving battle or losing this ability. This ability has no effect if this Pokémon is not a Wishiwashi.