Solgaleo, Lunala, and Necrozma are a trio of Legendary Pokémon first discovered in the Alola region. Solgaleo and Lunala are the game mascots of Pokémon Sun and Moon, while Dusk Mane Necrozma and Dawn Wings Necrozma are the mascots of Pokémon Ultra Sun and Ultra Moon. They are said to have come from Ultra Space. Solgaleo and Lunala have form like-transformations known as Radiant Sun phase and Full Moon phase respectively when using their powers. Necrozma has three additional forms (all introduced in Pokémon Ultra Sun and Ultra Moon): Dusk Mane Necrozma, Dawn Wings Necrozma, and Ultra Necrozma. It transforms into Dusk Mane Necrozma or Dawn Wings Necrozma when it has absorbed Solgaleo or Lunala, respectively. Either of these two forms can transform into Ultra Necrozma after absorbing enough light to restore its true form. All three have their own unique Z-Crystals: Solganium Z, Lunalium Z and Ultranecrozium Z. Necrozma, while transformed into either Dusk Mane or Dawn Wings, can make use of the other two's Z-Crystals. Z-Power comes from light produced by Necrozma, while Z-Crystals and Sparkling Stones (and Z-Ring/Z-Power Rings by extension) are pieces of Necrozma that channel Z-Power in order to produce Z-Moves. According to The Light of Alola, a book in the Malie Library, they gave light to the Alola region when it was first created. According to legends, when Solgaleo and Lunala appeared from an Ultra Wormhole, the ancient kings of Alola bowed down to them and worshiped them. The guardian deities battled them and lost, with the duo gifting the tapu the Tapunium Z after their defeat. In legends in Pokémon Ultra Sun and Ultra Moon, Necrozma is referred to as "The Blinding One", as it once shared light across Alola and Ultra Space, before an unknown injury caused Necrozma to lose its true form. This resulted in Necrozma becoming extremely vicious and constantly in pain, which made it steal light from other worlds, and even from Solgaleo and Lunala, in order to sustain itself and regain the form it once had.