Necrozma

Ultra Necrozma is a draconian Pokémon with four wings, mainly made out of light energy. It rearranges parts of normal Necrozma into a sort of armor, that glows golden with light. Its head shape resembles the star that was on Necrozma’s “tail.” It’s head is made out of what was Necrozma’s body, with two small wings made out of light coming off of where the eyes are, which are diamond shaped with four different segments, and different colors on each part, and each eye has different colors.

Necrozma's true powers lies in its Ultra Burst form. This occurs when it absorbs either Solgaleo's or Lunala's light, and it harnesses it as its own, it becomes a light dragon and Psychic/Dragon Type. This Ultra Burst form is actually Necrozma's true form. It can change into this form when holding the Ultranecrozium Z and can use the exclusive Z-Move Light That Burns the Sky

When she is defeated she turns into her base state

Necrozma when she becomes her base state a Pokémon whose body appears to be constructed out of black crystalline material; its disproportionately large arms have three claws jutting out of them, as well as a single large whitish crystal protruding backward from each arm. Its small legs bend backward like a bird's and have three toes each. However, it does not seem to use them as it can naturally levitate through unknown methods.

A single wing grows out of each of its shoulders, which resembles a hook. The large protrusion attached to its head is its tail, which is white in the back with a dark gray symbol resembling a star in the center.

This part of the tail absorbs light that it converts to lasers, and glows when it does. The sides of its head and the top of its tail are covered in spikes, and its face possesses a collection of multicolored shapes.