In addition to its Dusk Mane and Dawn Wings forms, Necrozma has a third form in Pokémon Ultra Sun and Ultra Moon. Continue reading if you don’t mind seeing potentially major spoilers. Necrozma’s third form is officially known as Ultra Necrozma, a Psychic/Dragon-type Pokémon. The official Pokédex entries and names of all new Pokémon and forms are as follows:
Dusk Form Lycanroc
Pokémon Ultra Sun: Bathed in the setting sun of evening, Lycanroc has undergone a special kind of evolution. An intense fighting spirit underlies its calmness.
Pokémon Ultra Moon: This strange form is the result of its evolving at dusk. It’s very rare in Alola.
Dusk Mane Necrozma
Pokémon Ultra Sun: This is its form while it is devouring the light of Solgaleo. It pounces on foes and then slashes them with the claws on its four limbs and back.
Pokémon Ultra Moon: This is Necrozma’s form while it’s absorbing the power of Solgaleo, making it extremely ferocious and impossible to control.
Dawn Wings Necrozma
Pokémon Ultra Sun: Lunala no longer has a will of its own. Now under the control of Necrozma, it continuously expels all of its energy.
Pokémon Ultra Moon: This is its form while it’s devouring the light of Lunala. It grasps foes in its giant claws and rips them apart with brute force.
Pokémon Ultra Sun: This is its form when it has absorbed overwhelming light energy. It fires laser beams from all over its body.
Pokémon Ultra Moon: The light pouring out from all over its body affects living things and nature, impacting them in various ways.
Poipole (UB Adhesive)
Pokémon Ultra Sun: This Ultra Beast is well enough liked to be chosen as a first partner in its own world.
Pokémon Ultra Moon: An Ultra Beast that lives in a different world, it cackles wildly as it sprays its opponents with poison from the needles on its head.
Pokémon Ultra Sun: It stores hundreds of liters of poisonous liquid inside its body. It is one of the organisms known as UBs.
Pokémon Ultra Moon: One kind of Ultra Beast, it fires a glowing, venomous liquid from its needles. This liquid is also immensely adhesive.
Stakataka (UB Assembly)
Pokémon Ultra Sun: It appeared from an Ultra Wormhole. Each one appears to be made up of many life-forms stacked one on top of each other.
Pokémon Ultra Moon: When stone walls started moving and attacking, the brute’s true identity was this mysterious life-form, which brings to mind an Ultra Beast.
Blacephalon (UB Burst)
Pokémon Ultra Sun: It slithers toward people. Then, without warning, it triggers the explosion of its own head. It’s apparently one kind of Ultra Beast.
Pokémon Ultra Moon: A UB that appeared from an Ultra Wormhole, it causes explosions, then takes advantage of opponents’ surprise to rob them of their vitality.
Pokémon Ultra Sun: It electrifies its claws and tears its opponents apart with them. Even if they dodge its attack, they’ll be electrocuted by the flying sparks.
Pokémon Ultra Moon: It approaches its enemies at the speed of lightning, then tears them limb from limb with its sharp claws.