Notes:

Blissey Dex Entry (ORAS): Blissey senses sadness with its fluffy coat of fur. If it does so, this Pokémon will rush over to a sad person, no matter how far away, to share a Lucky Egg that brings a smile to any face.
Hatterene Dex Entry (Sword, Gigantamax): This Pokémon can read the emotions of creatures over 30 miles away. The minute it senses hostility, it goes on the attack.