Wyrdeer is a snow deer-like Pokémon. Its body is mostly gray with white spots, as well as white fur on its lower legs, underside, round tail, eyebrows, and mane, the latter resembling a beard. Wyrdeer has large, golden antlers, the shape of which resembles radio antennae. Each of these antlers has one black orb near the base. Wyrdeer also has a brown nose and black cloven hooves, as well as two tufts of fur on the back of each lower leg.
Wyrdeer is well-beloved by the people in the Hisui region due to its highly prized fur, which provides excellent insulation from the cold and is used to make clothing. By using the orbs on its antlers, Wyrdeer can unleash psychic powers strong enough to distort space, and also create invisible barriers for protection. It also uses the antlers to lead Stantler herds and search for safe paths to travel.[1] Wyrdeer's sturdy legs allow it to gallop and dash across the land, and jump over any obstacle in its way.
A special Wyrdeer is also worshiped due to being descended from one of the ten ancient Pokémon who received a blessing from Arceus and serves as a Ride Pokémon. The people in Hisui use the Celestica Flute to call for his aid. He resides in the Obsidian Fieldlands.
Wyrdeer is implied to be extinct in the present day, Stantlers are said to be no longer capable of evolving into Wyrdeer and they're not known to be found anywhere.
Wyrdeer and its pre-evolved form, Stantler, are the only known Pokémon capable of learning the move Psyshield Bash.
Evolution
Wyrdeer evolves from Stantler in Hisui.
(For specifics on this Pokémon's evolution in the games, refer to Game data→Evolution data.)
Origin
Wyrdeer may be based on a reindeer, or the Yezo sika deer (called ユㇰ yuk by the native Ainu people), a subspecies of the sika deer native to Hokkaido (where Hisui is based on). Much like how Wyrdeer is treasured by Hisuian people because their fur makes for a useful clothing material, the Yezo sika deer is considered important to the indigenous Ainu people of Hokkaido — they are hunted for their meat and hide, the latter of which is used to make clothing. Due to its white beard-like mane and eyebrows, it also resembles an elderly man or Santa Claus, though it may also reflect the beards of Ainu men. Its antlers resemble shishi-odoshi or radio antennae.
Name origin
Wyrdeer may be a combination of wyrd (Anglo-Saxon concept roughly equivalent to fate or destiny), weird, and deer.
Ayashishi may be a combination of 怪しい ayashii (strange/weird) and 鹿威し shishi-odoshi (a Japanese device traditionally used to scare deer and other animals away from gardens), maybe also 知らせ shirase (omen/premonition).