Xerneas is a blue and black, quadrupedal, cervine Pokemon with an eight-horned set of antlers extending out from its head, four on each side. In Active Mode, each horn is pale gold and adorned with a colourful, three-part glowing protrusion twining through the horn (orange, red, purple and teal-blue), one side mirroring the other. The colours gradually turn lighter to darker when moving from base to tip. In Neutral Mode, the horns are pale blue and the protrusions the same blue as its upper body. Xerneas's head is blue with two horns on either side of its head and the root of its horns mark its face, just below the eye and over the nose. Its eyes are the same colour as its fur and its pupils are X-shaped. The blue portion of its body ends at the chest area where the "fur" juts outward to the side, similar to the blue horns on its face. On its breast is an inverted V-shape that is also pale gold in Active Mode and pale blue in Neutral Mode. The inside of the V-shape is black and extends into its lower body.