When Whismur cries, the sound of its own voice startles it, making the Pokémon cry even louder. It cries until it’s exhausted, then it falls asleep.
Hidden Ability
Soundproofing gives the Pokémon full immunity to all sound-based moves.
The Pokémon gets scared when hit by a Dark-, Ghost-, or Bug-type attack or if intimidated, which boosts its Speed stat.