The official Pokémon website has announced that a Milcery with Rare Sweets will appear in Pokémon Sword and Pokémon Shield Max Raid Battles from January 30th, 2020 until February 16th, 2020.

A Milcery with Rare Sweets in Pokémon Sword and Pokémon Shield Max Raid Battles

This Milcery can Gigantamax after it evolves, and it might reward you with Star Sweets and Ribbon Sweets.

Milcery, the adorable Cream Pokémon, will be featured in Pokémon Sword and Pokémon Shield Max Raid Battles. From January 30, 2020, to February 16, 2020, special Milcery may appear in Pokémon Dens throughout the Wild Area. These Milcery will be able to Gigantamax after evolving into Alcremie.

Also, when you win a Max Raid Battle against a Milcery during this time, you may receive various Sweets as a reward. These include Star Sweets and Ribbon Sweets, both of which couldn't be obtained before. Have Milcery hold different kinds of Sweets and evolve them into the many forms of Alcremie.

To get some valuable advice for tackling these challenging matches, be sure to read our Pokémon Sword and Pokémon Shield Max Raid Battle Tips article. And don't wait—these Milcery will only be appearing in Max Raid Battles for a limited time. Don't miss out on your chance to catch them!

Source: https://www.pokemon.com/us/pokemon-news/a-milcery-with-rare-sweets-in-pokemon-sword-and-pokemon-shield-max-raid-battles/