To evolve Bisharp into Kingambit in Pokémon Go, players need to beat 15 dark- or steel-type Pokémon in raids with Bisharp set as the buddy, then use 100 Pawniard Candy to evolve.
Pawniard in Pokémon Go can be obtained from rare hatch 12 km eggs or 7 km eggs from completing Routes, and can also be encountered in the wild or through one-star raids during the 'Crown Clash' event.
To evolve Pawniard into Bisharp, players need to use 50 Pawniard Candy with no special requirements.
Pawniard, Bisharp, and Kingambit can all be shiny in Pokémon Go, but finding the shiny versions requires luck.