Schooling
1 Pokémon can have Schooling: 1 as a regular Ability.
What does Schooling do?
If this Pokémon is a Wishiwashi and level 20 or above, then when it enters battle and at the start of each turn, it becomes Schooling Form if its HP is 25% or higher and Solo Form otherwise. This ability cannot be replaced, copied, or nullified.
Which Pokémon have Schooling? (1)
How Abilities work · Hidden Abilities explained · Every Ability