Qwilfish does not evolve in Pokémon Legends: Arceus
Hisuian Qwilfish evolves into Overqwil
Use Barb Barrage 20 times in Strong Style
Level up Hisuian Qwilfish after that
Catch or obtain a Gligar
Use a Razor Fang on Gligar
Wait until nighttime
Level up Gligar once at night while holding the Razor Fang
Gligar evolves into...
Have save data from Pokémon Brilliant Diamond or Pokémon Shining Pearl on your Nintendo Switch
Finish the main story of Pokémon Legends: Arceus
Reach the postgame
Go...
Complete the main story
Finish the postgame missions
Catch every other Pokémon in the Hisui Pokédex
Reach Research Level 10 for all Pokémon in the Pokédex
Obtain the...
Use a Black Augurite on Stantler to evolve it into Wyrdeer in Pokémon Legends: Arceus
Stantler does not evolve in the mainline games outside Pokémon...
Catch or evolve a Teddiursa in Pokémon Legends: Arceus
Evolve Teddiursa into Ursaring at level 30
Go to a full moon night in the Crimson Mirelands
Use...
Catch or obtain a Stantler
Teach Stantler the move Psyshield Bash
Use Psyshield Bash in Agile Style 20 times
After that, Stantler can evolve into Wyrdeer from...