Zekrom is a large, black draconian Pokémon that seems to share its theme with its counterpart, Reshiram. Compared to to its other counterparts, it also appears to have more of an upright body that appears to be vaguely humanoid. Zekrom has piercing red eyes and dark gray to black skin that seems to be armor-like. Zekrom also has a large, generator-like tail and long mane that ends in a tip, usually glowing in an iridescent blue color. It also has a set of small black wings behind its three-clawed arms.
Zekrom does not evolve.