FusionDex

Drowdos rampages through open waters, seeking out large groups to fire a special beam of hypnotic energy from its mouth. Once they have been forcibly lulled to sleep, it gorges itself on their dreams.

It is an extremely vicious and violent Pokémon. If your nose becomes itchy while you are sleeping, it's a sure sign that a Drowdos is standing above your pillow and trying to eat your dream through your nostrils.