Pokémon #644 in the National PokéDex, a dual type Dragon/Electric Legendary Pokémon.
Zekrom is a black, bipedal Pokémon resembling a dragon or dinosaur, with dark patches on various portions of its body. It has red scleras, white irises, and black pupils, as well as a small horn-like protrusion on the tip of its snout. Its head sports a thundercloud-like crest tipped with light-blue coloration. There are six pairs of pointed teeth visible when its mouth is open, two in the upper jaw and four in the lower. At the base of its neck is a black, stud-like feature, and atop its shoulders are similar, larger features resembling armor padding. The bases of its wings also have such padding, and a fanned, splayed, seemingly webbed shape with a small "wing-spike" on one edge. The lower length of Zekrom's arms extenuate into splayed, seemingly webbed, somewhat baseball-mitt-like formations, with three-clawed, dark-colored hands on the undersides. The front portion of Zekrom's waist is black-colored, with its belly and thighs having thin striations down their length. Its knees are black, as are the foremost parts of its three-clawed feet and spiked heels.
It appears on the box art of Pokémon White.
Alongside Reshiram and Kyurem it is part of the Tao Trio.
It does not evolve from or into another Pokémon.
Japanese Name: Zekrom