Reshiram is a white, bipedal Pokémon with draconic, avian, and mammalian traits. A long, voluminous wispy mane streams out from the upper side of the snout and outwards from its head. The top of this mane is adorned with two protrusions resembling ears.

Reshiram is a Fire-type special attacker that can wallbreak Steel-types and neutralize Fairy-types. It has high damage output with Blue Flare, Draco Meteor, and Roost, and can use Life Orb to boost its power.