When it locks eyes with an enemy, it will use a mix of PSI moves such as HYPNOSIS and CONFUSION.
Avoid eye contact if you come across one. It will try to put you to sleep by using its pendulum.
When it is very hungry, it puts humans it meets to sleep, then it feasts on their dreams.
Always holding a pendulum that it rocks at a steady rhythm, it causes drowsiness in any one nearby.
The longer it swings its pendulum, the longer the effects of its hypnosis last.
— Pokédex entries (via PokeAPI)