FusionDex

Castsey sit peacefully in the rain, often falling asleep listening to the sounds. They hold out their umbrellas for Pokémon and trainers who are cold from the rainfall.

If it senses sadness with its fluffy fur, a Castsey will rush over to the sad person, however far away, to share an egg of happiness that brings a smile to any face. It alters its form depending on the weather.