Pokemon Legends: Arceus — Request 35: Battling with Pachirisu

gamerant.com:

Since there are over 100 Requests to cover in Pokemon Legends: Arceus, it's only natural that some requirements would be more difficult than others. Most Requests involve fetching items/materials for crafting recipes or completing a Pokemon's Pokedex entry. Others such as Request 35: Battling with Pachirisu may take more than a few tries if players aren't sure what to do.

While Pokemon Legends: Arceus' Requests vary in difficulty, they're not impossible to complete. Some may take longer than others, but those that do are usually linked to a Legendary Pokemon. Unfortunately, Request 35 doesn't involve Legendaries, but it's one Request that can help players complete a few research tasks for Pachirisu and Ursaring.

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This Request takes place in the Crimson Mirelands, which means players will need to have wrapped up the Story Mission for the Obsidian Fieldlands. To get the Request to appear, Pachirisu needs to be caught. Pachirisu can be found in the morning in the Cottonsedge Prairie. However, there's an Alpha Pachirisu to thefar south of the Mirelands Camp.

Once Pachirisu has been caught, return to Jubilife Village and accept Request 35 posted on Laventon's board. This requires players to go back to the Crimson Mirelands, and speak to the quest-giver, Ren, who's standing with a Pachirisu outside the Mirelands Camp.

Request 35 involves defeating a level 30 Ursaring with Pachirisu. It says to defeat with «Only Pachirisu,» meaning the only Pokemon in the party is Pachirisu.

This does not mean ONE Pachirisu. Players can catch more than one and have it in rotation before taking on Ursaring. As long as the party has «only Pachirisu,» players can complete Ren's Request.