Blissey

Blissey is a Normal-type Pokémon from the Johto region. It evolves from Chansey after being fed 50 candies. Blissey is the final evolution of Happiny.

Event Pokémon forms
This Event Blissey form can be obtained from evolving respective costumed Chansey.

Trivia

 * Blissey has the highest Stamina stat in the game. Because of it, in player community, it is consider one of the most effective gyms defender.