Burmy has several forms you can find and two evolved forms, which have different requirements you have to follow to get them both.

It will require 25 Ralts Candy to evolve Ralts into Kirlia, then another 100 Ralts Candy to evolve Kirlia into either Gardevoir or Gallade. Unlike Gardevoir, you will only be able to evolve a male ...

During Community Day, the chances of encountering a Shiny Ralts will be higher. This means you can get Shiny Kirlia, Shiny Gardevoir, and Shiny Gallade through the evolution process.

Image: The Pokémon Company Gardevoir was introduced in Gen III as the final stage of the Ralts evolution line in Pokémon Ruby & Sapphire. It's been a mainstay ever since, with Gen IV ...