Anyone who takes even one bite of BLISSEY's egg be comes unfailingly caring and pleas ant to everyone.
It has a very com passionate nature. If it sees a sick POKéMON, it will nurse the sufferer back to health.
Biting into one of the delicious eggs that BLISSEY provides will make everyone around smile with joy.
BLISSEY senses sadness with its fluffy coat of fur. If it does so, this POKéMON will rush over to the sad person, however far they may be, to share an egg of happiness that brings a smile to any face.
If it senses sadness with its fluffy fur, a BLISSEY will rush over to the sad person, however far away, to share an egg of happiness that brings a smile to any face.
— Pokédex entries (via PokeAPI)