an adult mystical deer with a body covered in a celestial pattern resembling a

an adult mystical deer with a body covered in a celestial pattern resembling a starry sky. Its horns are wide and adorned in white, similar to tree branches, and its coat has shades of blue and purple. Your eyes radiate a soft light, with an expression of superiority, It displays small luminous details all over its body. For the anime style version "Tate no Yuusha", imitating the pokemon Xerneas, in a macabre and serious style.