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Psyzee release hypnotic waves that lull other Pokémon to sleep, but those same waves can bounce back at them. Psyzee can try to resist falling asleep to their own psychic waves, but this causes them to experience headaches.

If your nose becomes itchy while you are sleeping, it's a sure sign that a Psyzee is standing above your pillow and trying to eat your dream through your nostrils. When its headache intensifies, it starts using strange powers.