Pokémon Ultra Sun and Moon gameplay of Dusk Mane and Dawn Wings Necrozma

Having Dusk Mane Necrozma or Dawn Wings Necrozma hold the new Z-Crystal Ultranecrozium Z will allow them to trigger Ultra Burst in battle in Pokémon Ultra Sun and Ultra Moon.

Press the Ultra Burst button in battle to witness the appearance that Ultra Necrozma takes on as it becomes a dragon shining with light!

To see official gameplay footage of this in action, check out the videos below: