A new Max Raid event is going on now in Pokemon Sword and Shield. 

Until Aug. 21, Impidimp and its evolved forms, Morgrem and Grimmsnarl, are appearing more frequently in Max Raid dens across the Wild Area, Isle of Armor and Crown Tundra. 

In addition, players have a chance to encounter a shiny Grimmsnarl in five-star Max Raids. Your odds of finding one are quite slim, however, so you'll need to participate in as many Max Raids as possible if you're hoping to catch one before the event ends.

The Max Raid event runs until 4:59 p.m. PT on Aug. 21. Before the featured Pokemon can begin appearing in your game, you must first refresh your raid dens, either by connecting to the internet or selecting "Get the Wild Area News" from the Mystery Gift menu.

Grimmsnarl isn't the only special Pokemon that players can get right now. In celebration of the 2022 Pokemon World Championships, Sword and Shield players can claim a free Victini via Mystery Gift until Aug. 21. Those who attend the event in-person can also pick up a special Sinistea.

Pokemon Sword and Shield first launched for Nintendo Switch back in November 2019. Since then, the games have regularly hosted special Max Raid events, though they've slowed down considerably in recent months since the series' next mainline games, Pokemon Scarlet and Violet, were announced.

Pokemon Scarlet and Violet will launch for Switch on Nov. 18. The Pokemon Company has been steadily revealing new details about the titles in the lead up to their release. Earlier this month, the company shared a new trailer showcasing the games' open-world region and several new Pokemon. 

Pokemon Scarlet and Violet are available to preorder now at various retailers, including Amazon, GameStop and Walmart. For more, be sure to check out everything we know about Pokemon Scarlet and Violet, as well as every new Pokemon revealed so far.