Corviknight is a large, avian Pokémon resembling a raven. Most of its body is a lustrous black, but its lower beak and legs have a matte color. Its feathers are tempered with steel. Its mantle, breast, belly, flanks, and scapular feathers are smooth and resemble plate armor. Corviknight's talons, head, and upper beak are similarly armored. It has a crest above its eyes that resembles a crown, and a ruff of feathers on its throat that resemble a beard. Corviknight's eyes have white pupils, red irises, and black sclerae.

It is said to be the strongest bird Pokémon in the Galar region, being able to scare off any Pokémon that tries to challenge it. Due to its intelligence and flying skills, Corviknight serves a company called Galar Taxi, where it transports people from one location to another. Corviknight preys on Bunnelby. It has violent territorial clashes with Skarmory.