Peat Blocks are a new evolutionary item introduced in Pokémon Legends: Arceus. It is responsible for evolving Ursaring into Ursaluna, a brand-new evolution introduced in this entry. Throughout the plot of Pokémon Legends: Arceus, trainers will battle against a variety of Noble Pokémon that are acting in a frenzy. It is up to the player to travel the lands and quell these Nobel creatures. While many of them are the game's boss battles, they cannot be captured directly. Instead, the player will need to go out into the world and find their own.
Fortunately, players can find and catch Ursaring in Pokémon Legends: Arceus throughout the Crinsom Mirelands. They have been known to spawn in the Golden Lowlands nearby Gapejaw Bog along with its previous evolution, Teddiursa. Although, Teddiursa will flee if provoked too soon. Instead, throw berries in their general vicinity and wait for them to start eating before engaging. Regardless, trainers will need to capture the entire family line to complete the Pokédex. In order to get Ursaluna, they'll need to find Peat Blocks.
Related: Pokémon Legends: Arceus — How To Get Shiny Hisuian Arcanine
There are four different ways to obtain Peat Blocks, all of which are pretty time-consuming or luck-based. Collecting the Peat Block is the most difficult part of obtaining Ursaluna. Since there are multiple ways to get Peat Blocks, this means trainers can have multiple Ursaluna. While only one is needed for the Pokédex, it can be valuable to have another for trading purposes. These are all the different ways to find Peat Blocks.
After collecting the Peak Block, head back to the camp and change the time of day until a full moon appears. It might take a few attempts but keep selecting nightfall
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