This page offers a guide on how to complete Request 81: In Search of a Fiery Pokémon in Pokémon Legends: Arceus (PLA).
This request is picked up from Brice at Icepeak Camp in Alabaster Icelands. You can only pick this request up once you’ve completed Setting Up the Icepeak Camp as he’ll be found there after the camp’s set up. He’ll ask you to bring him a Fire-type Pokémon to help keep him warm.
Where to Find a Fire-type Pokémon
Now, at this stage in the game, it’s pretty likely that you have a Fire-type in your pastures. If not, you won’t have much luck finding any in Alabaster Icelands. Instead, you’ll want to head out to Obsidian Fieldlands and set out to Horseshoe Plains and grab yourself a low-level Ponyta. You probably don’t want to find a big strong alpha or high-levelled fire-type as you are giving it away to Brice - and he doesn’t mind their level!
Once you have a Fire-type of your choice, return to Brice and hand it over to complete the request and earn x3 Full Restore and x1 Exp. Candy L.