Wobbuffet

Wobbuffet is a Psychic-type Pokémon from the Johto region. It evolves from Wynaut after being fed 25 candies.

Trivia

 * Wobbuffet wearing party hat was available in raid during Hatchathon 2020, which was a 2nd tier Raid Boss.
 * Normally, evolved stages of Pokémon cannot be shiny in encounter screen, but exceptionally during the above event, Wobbuffet could. Also during Spotlight Hour, and after, Wobbuffet can be shiny.