The Pokemon Center has four Hisuian Pokemon plush dolls available on its online store. The Pokemon you can buy are Hisuian Growlithe, Wyrdeer, Hisuian Braviary, and Basculegion. As of the time of writing, the Basculegion plush and the Hisuian Growlithe plush are both out of stock. It is unknown when and if the Pokemon Center will restock them.
As the name implies, Braviary and Growlithe are existing Pokemon in a regional form. Hisuian Growlithe has a more lion-like appearance than its Kanto counterpart, whereas Braviary’s color scheme and face feathers are different. Basculegion and Wyrdeer are new Pokemon, which evolve from Basculin and Stantler respectively in Pokemon Legends: Arceus. The Growlithe plush is the only one that is under 10”, with the other three between 10” and 15”. Because of that, while all the other Pokemon plush dolls cost $19.99, the Growlithe costs $16.50.
All four of these Pokemon play some sort of prominent role in Pokemon Legends: Arceus. Braviary, Basculegion, and Wyrdeer are mounts that you unlock through the game. As for Growlithe, one plays an important role in the story. Another Growlithe plush, as well as an Arceus plush, appeared in a previous Pokemon Legends: Arceus merchandise line. Other items in that line included an Arceus phone case and a Hisuian Poke Ball pouch.
The plush Hisuian Pokemon are available online. Pokemon Legends: Arceus is available worldwide on the Nintendo Switch.