Nebby

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Nebby
ほしぐもちゃん Hoshigumo-chan

?

Nebby as a Cosmog, Solgaleo and Lunala
Illustrated by Megumi Mizutani


Debuts in	Pokémon Sun and Moon


Caught at	Altar of the Sunne^S Altar of the Moone^M Mahalo Trail^USUM


Evolves in	Pokémon Sun, Moon, Ultra Sun and Ultra Moon
Evolves in	Pokémon Sun, Moon, Ultra Sun and Ultra Moon


Gender	Gender unknown


Ability	Full Metal Body* Shadow Shield*

Current location	With the player


		→		→

Nebby (Japanese: ほしぐもちゃん Hoshigumo-chan) is a character introduced in Pokémon Sun and Moon. Although it seems to possess a mysterious power, being a Cosmog, Nebby is depicted as frail and unable to use moves for large parts of the games' storyline. Nebby's name has been given to it by Lillie, who cares for it and tries to find out about its true nature. In an attempt to save it from harm, Lillie often keeps Nebby in her bag in order to hide it from outsiders.

In the core series

Spoiler warning: this article may contain major plot or ending details.

Character profile

See also: Cosmog (Pokémon), Cosmoem (Pokémon)

The childish Nebby tends to rest in Lillie's drumbag, but at home, it lives in Kukui's loft.

Nebby is a Cosmog owned and nicknamed by Lillie, forming as one of the central characters for Pokémon Sun, Moon, Ultra Sun and Ultra Moon. As like all Cosmog, it has has child-like behavior, and is in most cases, completely unaware of the world around it. It is incredibly curious and carefree to the point of even ignoring common orders. Despite this behavior, it is still trusting of certain people, such as Lillie. Nebby has an interest in Alola's ruins and Guardian deities, and because of this it attempts to leave Lillie's bag on its own, unknowing that it may risk itself to danger. In order to protect itself and the people around it, it will attempt to use its powers to either push objects away or teleport to new location. The first time of multiple, that it has used this power, Lillie explains that it was in order to help protect her,^[1] suggesting that it has good intentions, but has ignorance on its own health and safety. Nebby has an interest in Pokémon battles,^[2] despite this, it ignores commands and attacks from Lillie.^[3]

As a Cosmog, Nebby was subject to the Aether Foundation's experiments, being used to create Ultra Wormholes by either using its gases or by making it stressed. When it evolved into Cosmoem, Nebby was essentially expression and emotionless. As a Solgaleo^SUS and Lunala^MUM, Nebby has noticeably matured. It will listen to commands and attacks given to Lillie and the player, with its protective nature being more controlled, having a bigger grasp on its own powers. In Sun and Moon, Nebby has a taste for adventure, wishing to go on more adventures with the player and Lillie.

Despite technically being classified as a wild Pokémon, Nebby was considered to be Lillie's^[4] and is described as being her partner.^[5] Nebby has a child and mother-like relationship with Lillie, even after evolution, where Lillie worries about it before she leaves it with the player. Lillie also makes the retort that the player will act as Nebby's parent, suggesting a similar relationship. At the Lake of the Moone^SUS or the Lake of the Sunne^MUM, bringing Nebby will result in it meeting with the opposite of its species in which it will create an offspring, a new Cosmog, for the player to obtain.

Nebby was first raised by the Aether Foundation before Lillie had taken it in. In Professor Kukui's Pokémon Research lab on Route 1, Lillie had taken care of Nebby in the loft, acting as Lillie's personal room. As a Cosmog, Nebby seems to have a bed placed in the loft that is chewed on by Kukui's Rockruff. In the original Sun and Moon, this bed disappears after Lillie has decided to pack up and leave for Kanto, while in Ultra Sun and Ultra Moon, Lillie decides to stay in Alola, and Nebby's bed remains. In all versions, Nebby currently resides in the player's Poké Ball of choice after Lillie has decided to let the Pokémon go.

Appearance

Visually, Nebby appears nearly identical to other members of its species in all its evolutionary forms. It is the only Cosmoem that appears as an NPC.

Nebby will evolve throughout both Sun and Moon, and Ultra Sun and Ultra Moon, evolving twice. At Aether Paradise Nebby will evolve into Cosmoem after suffering intense stress from the machine Lusamine uses to open an Ultra Wormhole. At the Altar of the Sunne^SUS or Altar of the Moone^MUM Nebby will evolve into a Solgaleo and Lunala respectively after the player and Lillie play the Sun and Moon Flutes.

Cosmog	Cosmoem	Solgaleo	Lunala

Pokémon Sun and Moon

Background and pre-game

During the events of the game, it is revealed to the player that Professor Mohn of the Aether Foundation had studied a Cosmog and had researched Ultra Space and Ultra Wormholes prior to the events of the game. This research had led to result of Mohn disappearing with his whereabouts unknown. All that was left was a couple of research papers on Ultra Space theories, Ultra Beasts, and a weakened Cosmog. Professor Mohn had named the species.^[6]

During the opening cinematic, three months prior to the beginning of the player's adventure, when Lillie tries to flee Aether Paradise, she is teleported away by a mysterious force; that force is later revealed to stem from Nebby, who hid in her bag. Lillie and Nebby wash up on a beach, where they are found by Professor Burnet, who agrees to help Lillie learn more about Nebby. She then contacts her husband, Professor Kukui, who allows them to stay with him for the time being.

On Melemele Island

Nebby using its powers at Mahalo Trail

When the player gets to Iki Town, Lillie can be seen talking to her bag, walking north towards Mahalo Trail. Nebby appears to be interested in the Ruins of Conflict. The player follows Lillie, potentially mistaking her for the island kahuna of Melemele Island. They then encounter a worried Lillie, who informs the player about Nebby being attacked by a group of wild Spearow on an unstable rope bridge. The player steps in to protect it and Nebby is once again forced to use its hidden powers, thereby destroying the bridge. Nebby and the player are saved from falling by Tapu Koko, the guardian deity of Melemele Island. Lillie thanks the player for their bravery and asks the player to not tell anybody about Nebby. She then scolds Nebby for using its power again despite being advised not to and tells it to return to her bag. At the Iki Town festival, Nebby watches the player receive their first partner Pokémon, and later their Z-Ring. Nebby remains with Lillie both in and out of her drum bag when she introduces the player to Kukui's lab, the Rotom Pokédex, the Pokémon Center on Route 1, the Trainers' School, and Hau'oli City to the player.

When the player arrives at Melemele Meadow, Lillie appears to have gotten lost and Nebby has escaped from Lillie's bag. However, the player finds the Pokémon unharmed; Lillie then asks Nebby to return to the drum bag. After the player has completed Hala's trial, Nebby and Lillie accompany the player, Hau and Professor Kukui on his boat to Akala Island.

On Akala Island

The group makes it to Akala Island, where they meet the Trial Captain Mallow and Kahuna Olivia, afraid by people she doesn't know, Lillie asks Nebby to return to her bag. Kukui explains to her that it is alright, as Olivia and Mallow are trusted people on the island. Lillie eventually goes shopping and gets caught up by the player, in the process, she asks them to help with research regarding Nebby. Lillie is not a Pokémon Trainer herself, and would like someone as strong as them to learn more. She also believes that Nebby may be interested in visiting the Ruins of Life. Lillie stays at the Tide Song Hotel in Heahea City, hoping to meet someone, as well as to stay away from Team Skull, who may want Nebby for malicious purposes. Once the player and Hau make it back around to Heahea City, Nebby is next seen at the Dimensional Research Lab along with Lillie. Lillie is impressed with the player's skill as a trainer, and instructs Nebby to use Splash, failing to under and adhere to the commands that she gave it. The Cosmog curiously approaches the player, informing Lillie of the player's presence. The two go inside, and the player learns about Professor Burnet who researches Pokémon from other dimensions. Lillie explains to them of her and Nebby's history with Kukui and Burnet, how they treat her like their own daughter. Lillie eventually gets lost again after the player makes it to Konikoni City, in which, Professor Burnet brings her and Nebby to Olivia and the player at the Ruins of Life. Olivia suggests that Nebby must be powerful when it approaches Tapu Lele's territory. Lillie willingly watches the grand trial and fight between Olivia and the player, saying that Nebby will likely enjoy it too. Hau returns to the group, informing the player that Faba of the Aether Foundation would like to take them to Aether Paradise. This causes Lillie to get uneasy, preferring to stay behind and will catch up with them later on Ula'ula Island.

On Ula'ula Island

On Ula'ula Island, Lillie informs the player that she and Nebby intend to see the Ruins of Abundance. Before this however, she requests the player to help do some research on Alola's history and legends at the Malie City Library, where she meets Hapu and Acerola. Lillie gets lost, accidentally running into an apparel shop instead. Acerola provides Lillie with a book from her father, called The Light of Alola, talking about the region's Legendary Pokémon. As the player makes way to Aether House on Route 15 it is revealed that Lillie has gone off on her own, separate from Hapu or Acerola, to see what it's like to travel on their own. In front of Aether House, Lillie is stopped by Team Skull Grunts, who notice her bag moving. The player steps in and stops the grunts from hurting them. Lillie stays at Aether House, being protected and watched over by Hau, while the player does their trial with Acerola. The player then goes out to save a Yungoos from Team Skull, traveling to their headquarters in Po Town. This turns out to be a trick, and Lillie and Nebby are kidnapped by Team Skull in an operation led by Team Skull Admin Plumeria; who says that Team Skull aren't the only ones who steal Pokémon. With Hau being unable to protect the two, Lillie goes with them willing to Aether Paradise. Overhearing this conversation, Gladion, who Hau and the player have encountered multiple times at Route 6 and Route 13, finds out that it was Lillie who took Cosmog from Aether Paradise. Gladion gets upset and initiates a battle with the player, being irritated that he has told the two before that if anyone were to find out about Cosmog, a disaster could happen on Alola. He brings Hau and the player to Aether Paradise, who now label the three as intruders.

On Aether Paradise

As a Cosmoem

At Aether Paradise, Gladion instructs the player and Hau to research Secret Lab B, which is filled with research documents on the Cosmog species and Ultra Wormholes from professor Mohn. They regroup to the entrance of Aether Paradise and head towards the house that takes palce on the artificial island. After taking on Team Skull and their boss, Guzma, the player manages to find Lillie, who is talking to the Aether Foundation's president, Lusamine, a character they have encountered previously. Lusamine appears to have contained Nebby inside a crate. Lillie tries to reason with Lusamine, telling her that Nebby will die if you were to force it to use too much of its power. Lusamine rejects her proposal, saying that a daughter like her has no right to tell her what to do after she has rejected her love. During their conversation, Hau and Gladion catch up, and it has been revealed that Nebby a subject to Team Skull and the Aether Foundation's experiments aiming at opening more Ultra Wormholes and harness the power of Ultra Beasts—experiments Lillie had originally saved it from with their escape seen during the opening cutscene. Lusamine begins to abuse Nebby's powers and opens Ultra Wormholes across the Alola region, including within the Trophy Room that they are currently standing in. After a battle with Lusamine, Lusamine and Guzma disappear into the Ultra Wormhole and it has been revealed that Nebby has evolved into a Cosmoem (although no one is seemingly aware of this). Lillie takes Nebby, upset by its sudden transformation. The following day, Lillie changes her outfit, storing Cosmoem into her new pink rucksack that she got in Malie City.

On Poni Island

In order to make Nebby feel better after the events at Aether Paradise, Lillie travels with the player to Poni Island. Before they leave, Gladion provides Lillie with the Moon Flute^SUS or Sun Flute^MUM. Lillie and the player travel to Seafolk Village, and are instructed by the village chief to speak with the kahuna of Poni. They go meet with Hapu, who lives on the island, and the previous kahuna's granddaughter. Bringing the two to the Ruins of Hope Hapu is seen becoming the kahuna, appointed by Tapu Fini. Sadly, Lillie's hopes of Tapu Fini helping Nebby do not come true. However, Hapu provides Lillie with all the information she knows about the legendary Pokémon that Lillie previously read about, confirming that there is two flutes and that the other is on Exeggutor Island, a previous trial site. Lillie and the player go to Exeggutor Island and retrieve the missing flute. Upon returning, back to Seafolk Village, they begin their journey across Vast Poni Canyon. At the Altar of the Sunne^S or Altar of the Moone^M, Lillie and the player play the Sun Flute and the Moon Flute together during the daytime^S or nighttime^M, and Nebby is drawn from her bag, evolving into Solgaleo^S or Lunala^M. Upon Lillie's request, Nebby guides her and the player into Ultra Space. In Ultra Space, Nebby roars at Lusamine who has merged with a Nihilego, forcing the two apart. Afterwards, Lillie informs the player that Nebby wants to keep on traveling with her and the player; however, Lillie stresses that she is not a trainer and urges Nebby to join the player instead. A battle is initiated, and the player is then required to catch Nebby, and can provide it with any nickname, however Lillie still call it as Nebby. During the credits sequence, depending on the version, Nebby will appear nuzzling a melancholy Lillie in a photograph during the credits. It will appear as a Solgaleo in Pokémon Sun and a Lunala in Pokémon Moon. Drawings of Nebby as Cosmog species can be seen on the letters given to Lillie.

Nebby can bring the player through an Ultra Wormhole at their game's altar in Poni, landing in the opposite game's version. The player can bring Nebby while in this "opposite world" to the lake in Ula'ula where it will provide an offspring with another Solgaleo^M/Lunala^S.

Pokémon Ultra Sun and Ultra Moon

In Pokémon Ultra Sun and Ultra Moon, Nebby returns to the same role as it had in Sun and Moon. However, the context is changed, altering pieces of its the story.

Background and pre-game

Like in Sun and Moon, Lillie tries to flee Aether Paradise, during the opening cutscene, taking place three months prior to the beginning of the player's adventure. She is being chased by two unusual figures, and is teleported away by Nebby, who hid in her bag. Lillie and Nebby wash up on a beach, where they are found by Professor Burnet, who agrees to help Lillie learn more about Nebby. She then contacts her husband, Professor Kukui, who allows them to stay with him for the time being.

Once again, it is also revealed to the player that Mohn, previously of the Aether Foundation had studied a Cosmog and Ultra Space prior. This research had led to the result of Mohn disappearing with his whereabouts unknown.

On Melemele Island

Nebby's first on-screen appearance

When the player gets to Iki Town, Lillie can be seen talking to her bag, walking towards Mahalo Trail, being interested in the Ruins of Conflict. Mistaking her for the island kahuna of Melemele Island, the player follows her. Lillie appears to be worried, informing the player about Nebby being attacked by a group of wild Spearow on an unstable bridge. The player steps in to protect it, using their newly obtained first partner Pokémon to battle the Spearow. This causes Nebby to once again use its hidden powers, for protection, destroying the bridge. They are saved by Tapu Koko, the guardian deity of Melemele Island. Lillie thanks the player for their bravery and asks the player to not tell anybody about Nebby. She then scolds Nebby for using its power again despite being advised not to and tells it to return to her bag. At the Iki Town festival the following day, Nebby watches the player receive their Z-Power Ring. Nebby remains with Lillie both in and out of her drum bag when she introduces the player to Kukui's lab, the Rotom Pokédex, the Pokémon Center on Route 1, the Trainers' School, and Hau'oli City to the player.

When the player arrives at Melemele Meadow, Lillie appears to have gotten lost and Nebby has escaped from Lillie's bag. Nebby wanders into the Seaward Cave, where they are caught by the two figures found in the opening cutscene, two members of the Ultra Recon Squad. They battle the player, and tell them about Cosmog, allowing them to hold onto it and return Nebby back to Lillie. After the player has completed Hala's trial, Nebby and Lillie accompany the player, Hau and Professor Kukui on his boat to Akala Island.

On Akala Island

The group makes it to Akala Island, where they meet Captain Mallow and Kahuna Olivia, afraid by people she doesn't know, Lillie asks Nebby to return to her bag. Kukui explains to her that it is alright, as Olivia and Mallow are trusted people on the island. Lillie eventually goes shopping and gets caught up by the player, in the process, she asks them to help with research regarding Nebby. Lillie is not a Pokémon Trainer herself, and would like someone as strong as them to learn more. She also believes that Nebby may be interested in visiting the Ruins of Life. Lillie stays at the Tide Song Hotel in Heahea City, hoping to meet someone, as well as to stay away from Team Skull, who may want Nebby for malicious purposes. Once the player and Hau make it back around to Heahea City, Nebby is next seen at the Dimensional Research Lab along with Lillie. Lillie is impressed with the player's skill as a trainer, and instructs Nebby to use Splash, failing to understand and adhere to the commands that she gave it. The Cosmog curiously approaches the player, informing Lillie of the player's presence. Inside, Lillie explains to them of her and Nebby's history with Kukui and Burnet, how they treat her like their own daughter. Lillie eventually gets lost again and Professor Burnet brings her and Nebby to the Ruins of Life. Olivia suggests that Nebby must be powerful when it approaches Tapu Lele's territory. Lillie willingly watches the grand trial and fight between Olivia and the player, saying that Nebby will likely enjoy it too. Hau returns to the group, informing the player that Faba of the Aether Foundation would like to take them to Aether Paradise. This causes Lillie to get uneasy, preferring to stay behind and will catch up with them later on Ula'ula Island.

On Ula'ula Island

On Ula'ula Island, Lillie informs the player that she and Nebby intend to see the Ruins of Abundance. Before this however, she requests the player to help do some research on Alola's history and legends at the Malie City Library, where she meets Hapu and Acerola. Lillie gets lost, accidentally running into an apparel shop instead. Acerola provides Lillie with a book from her father, called The Light of Alola, talking about the region's Legendary Pokémon. As the player makes way to Aether House on Route 15 it is revealed that Lillie has gone off on her own, separated from Hapu or Acerola, to see what it's like to travel on their own. In front of Aether House, Lillie is stopped by a Team Skull Grunt, who noticed her bag moving. The player steps in and stops the grunts from hurting them. Lillie stays at Aether House, being protected and watched over by Hau, while the player does their trial with Acerola. The player then goes out to save a Yungoos from Team Skull, traveling to their headquarters in Po Town. This turns out to be a trick, and Lillie and Nebby are kidnapped by Team Skull in an operation led by Team Skull Admin Plumeria; who says that Team Skull aren't the only ones who steal Pokémon. With Hau being unable to protect the two, Lillie goes with them willing to Aether Paradise. Overhearing this conversation, Gladion, who Hau and the player have encountered before, find out that it was Lillie who took Cosmog from Aether Paradise. Gladion gets upset and initiates a battle with the player, being irritated that he has told the two before that if anyone were to find out about Cosmog, a disaster could happen on Alola. He brings Hau and the player to Aether Paradise.

On Aether Paradise

At Aether Paradise, Gladion instructs the player and Hau to research Secret Lab B, which is filled with research documents on the Cosmog species and Ultra Wormholes from professor Mohn. After taking on Team Skull and their boss, Guzma, the player manages to find Lillie, who is talking to the Aether Foundation's president, Lusamine, a character they have encountered previously. Lusamine appears to have contained Nebby inside a cage. Lillie tries to reason with Lusamine, telling her that Nebby will die if she were to force it to use too much of its power. Lusamine rejects her proposal, saying that a daughter like her has no right to tell her what to do after she has rejected her love. During their conversation, Hau and Gladion catch up, and it has been revealed that Nebby was a subject to the Ultra Recon Squad and the Aether Foundation's experiments aiming at opening more Ultra Wormholes and protect Alola from the danger of Necrozma and the Ultra Beasts—experiments Lillie had originally saved it from with their escape seen during the opening cut scene. Lusamine begins to abuse Nebby's powers and opens an Ultra Wormhole across in the Trophy Room that they are currently standing in. After a battle with Lusamine, Lusamine and Guzma disappear into the Ultra Wormhole and it has been revealed that Nebby has evolved into a Cosmoem (although no one is seemingly aware of this). Lillie is able to take Nebby, upset by its sudden transformation. The following day, Lillie changes her outfit, storing Cosmoem into her new pink rucksack that she got in Malie City.

On Poni Island

The player and Lillie go through Poni Island together like in the original Sun and Moon, playing the Sun and Moon Flutes at Poni's altar, allowing Nebby to evolve into either Solgaleo^US or Lunala^UM. At this point, Necrozma comes from an Ultra Wormhole behind them, and along with, Lusamine and Guzma are dumped onto the altar's floor. Lusamine tells Lillie and the two to get away from the danger that is Necrozma. In order to protect them, Nebby does battle with Necrozma, resulting in a loss. Necrozma pins down Nebby, and absorbs it for its light, turning Necrozma into Dusk Mane^US/Dawn Wings^UM Necrozma. Necrozma then proceeds to crate multiple Ultra Wormholes across Poni's altar and throughout the Alola region. Still hostile, Necrozma then attacks the player with possession of Nebby's body, initiating a battle. After defeat, Necrozma creates another Ultra Wormhole and escapes back to Ultra Megalopolis. Once the player defeats Ultra Necrozma at Megalo Tower, Nebby is freed from Necrozma and returns to the Altar of the Sunne^US/Altar of the Moone^UM. Lusamine and Lillie thank the player and take Nebby back home to Aether Paradise to be treated.

Once the player defeats Ilima during Mina's trial, they have the option of returning to the now-repaired plank bridge at Mahalo Trail, where Lillie will ask the player to take Nebby in their care, insisting that Nebby wishes to be with Necrozma if the player finds it. After Nebby is caught, Lillie will give the player a Solganium Z^US/Lunalium Z^UM, which she had found being held by Nebby.

Like in Sun and Moon, The player can bring Nebby to the other game's "opposite world" atop Poni's altar through an Ultra Wormhole. By bringing them to the lake in Ula'ula it will provide an offspring with another Solgaleo^UM/Lunala^US.

Moves

While Lillie has instructed Nebby to use Splash, it is unclear whether or not it is capable of doing so.

In Sun and Moon, Nebby is obtainable at the Altar of the Sunne^S or Altar of the Moone^M. Nebby is coded to never be shiny. Nebby is required to be caught to progress the story. If the player has no available Poké Balls, Lillie will provide the player with ten normal Poké Balls.

In Ultra Sun and Ultra Moon, Nebby is obtainable at Mahalo Trail at a higher level, after the player has completed the main story. Nebby is coded to never be shiny. The fight and dialogue are activated as soon as the player enters the area and is required to be fought upon start. If the player has no available Poké Balls, Lillie will provide the player with ten normal Poké Balls. After the battle, Lillie provides the player with the corresponding Z-Crystal, Solganium Z^US/Lunalium Z^UM.

Types:
Psychic	Steel

Ability:

Full Metal Body

Held item:

None

Solgaleo Lv.55

Sunsteel Strike
Steel	Physical

Cosmic Power
Psychic	Status

Crunch
Dark	Physical

Zen Headbutt
Psychic	Physical

Types:
Psychic	Ghost

Ability:

Shadow Shield

Held item:

None

Lunala Lv.55

Moongeist Beam
Ghost	Special

Cosmic Power
Psychic	Status

Night Daze
Dark	Special

Shadow Ball
Ghost	Special

Types:
Psychic	Steel

Ability:

Full Metal Body

Held item:

None

Solgaleo Lv.60

Sunsteel Strike
Steel	Physical

Cosmic Power
Psychic	Status

Crunch
Dark	Physical

Zen Headbutt
Psychic	Physical

Types:
Psychic	Ghost

Ability:

Shadow Shield

Held item:

None

Lunala Lv.60

Moongeist Beam
Ghost	Special

Cosmic Power
Psychic	Status

Night Daze
Dark	Special

Moonblast
Fairy	Special

In the spin-off games

Pokémon Masters EX

Main article: Lillie (Masters)

While not present in the game, Nebby is mentioned by Lillie several times. Nebby is also mentioned as an option under the Pokémon-related interactions in the Trainer Lodge. Choosing this option will get Lillie very excited.

Lillie forms a sync pair with a Lunala. Her Sync Pair Story reveals that this Lunala is actually the offspring of Nebby, given to her as a Cosmog by the Trainer that Lillie entrusted Nebby with.

In the anime

Main series

The contents of this Section have been suggested to be split into Nebby (anime).
Please discuss it on the talk page for this Section.

Ash's Solgaleo
サトシのソルガレオ Satoshi's Solgaleo

Ash's Solgaleo, also known as Nebby, in the anime


Debuts in	A Dream Encounter!


Evolves in	Faba's Revenge!
Evolves in	Revealing the Stuff of Legend!


Gender	Gender unknown^[7]


Ability	Unknown


Released in	Prior to The Professors' New Adventure!

Current location	Alola


	→	→
This Pokémon spent 6 episodes as Cosmog and 2 episodes as Cosmoem.

Voice actor	Japanese	English
As Cosmog	Unknown	Haven Paschall
As Cosmoem	N/A
As Solgaleo	Unknown

Ash's Solgaleo (Japanese: サトシのソルガレオ Satoshi's Solgaleo) is a recurring Pokémon character in the anime taken care of by Ash, and his fifty-second Pokémon overall. It was first nicknamed Nebby (Japanese: ほしぐもちゃん Hoshigumo-chan) by Lillie.

History

Pokémon the Series: Sun & Moon

Cosmog being left by the guardian deities in order to be found by Ash

Nebby debuted in A Dream Encounter!. It first appeared in Ash's dream, where it was created by Solgaleo and Lunala at the Altar of the Sunne. It was taken to Melemele Island by the guardian deities of Alola, where Tapu Koko led Ash to where it was sleeping. Taking it to the Pokémon School, Ash and his classmates found that the unusual Pokémon emitted a high-pitched scream whenever it cried. Eventually calming it down, Ash decided to take care of Cosmog, which Lillie nicknamed Nebby. When Ash brought it home with Lillie, it met Professor Burnet, Lusamine, Wicke, and Faba, who revealed that Nebby could be an Ultra Beast. Lusamine later offered to take Nebby with her to Aether Paradise, but Ash declined because of his promise to take care of Nebby. Lusamine gave in and entrusted Nebby's safety with Ash.

In Night of A Thousand Poses!, Nebby teleported Lillie to Gladion, which prompted Lillie's fear of touching Pokémon to return. As a result, she lost her ability to touch her Alolan Vulpix, Snowy.

In Faba's Revenge!, it was lured out of Ash's bag by Faba, who convinced it to teleport him back to Aether Foundation's sealed lab. After arriving, Faba captured it in a device designed to keep it from teleporting. Faba intended to use Nebby's power to open an Ultra Wormhole, but he was stopped by Ash's Pikachu and Gladion's Umbreon. However, after being released, Nebby evolved into Cosmoem, and the residual energy from the evolution caused a Wormhole to appear anyway.

Solgaleo traveling through an Ultra Wormhole

Nebby was brought to the Altar of the Sunne by Ash in Family Determination!. In the next episode, Ash gave Nebby to the Tapu, asking for their help. After being blessed by Tapu Lele and Tapu Fini, the four deities sung at the Altar, opening the mechanism within and causing Nebby to evolve into Solgaleo, much to the surprise of everyone present. After greeting the others warmly, Solgaleo accepted Ash, Lillie, and Gladion's plea to help Lusamine, giving Ash a Solganium Z. After having his Z-Ring upgraded to a Z-Power Ring by the Tapu, Ash and the others climbed on Solgaleo's back, and using the power of the Z-Move Searing Sunraze Smash, created an Ultra Wormhole to travel to the place Lusamine awaited them.

After arriving in the Ultra Deep Sea in Rescuing the Unwilling!, Solgaleo and Ash cornered Lusamine during the following episode. As a result, Lusamine flooded their island with a poisonous liquid. Due to Solgaleo's Steel-type giving it immunity to poison, it protected Ash from the liquid, and then carried him across it, dodging Lusamine's attacks along the way. After that, it went back with Ash's Lycanroc to help the others fight off Lusamine's Pokémon, who continued to heal themselves due to the Nihilego's energy. Everyone later succeeded after Lusamine was freed from Nihilego's control by Ash. Solgaleo then carried the group, now joined by the revived Lusamine, back to the Altar of the Sunne. After the conclusion of the episode, it parted from the group.

In The Professors' New Adventure!, Solgaleo appeared above the site of Professor Kukui and Professor Burnet's wedding. The class thanked it for its help in Ultra Space, to which it smiled back at them.

In Filling the Light with Darkness!, Solgaleo and Lunala were playing in an Ultra Wormhole when they were attacked by a Necrozma. They fled as Necrozma pursued them through the Ultra Wormhole. It eventually wound up being injured by one of Necrozma's attacks and was left behind.

Solgaleo battling Necrozma

In Full Moon and Many Arms!, Solgaleo arrived in Alola, where it met up with Ash again and fought Dawn Wings Necrozma in an effort to free Lunala from its control. With its Sunsteel Strike, Solgaleo managed to knock Necrozma off of Lunala, causing it to break apart and fall into the sea. Shortly after, the elite Team Rocket unit, the Matori Matrix, attacked Solgaleo and Lunala by trapping them in an electrified net. After being freed by Ash's Pikachu and Gladion's Silvally, Solgaleo retaliated by attacking the unit's aircraft, forcing them to retreat. Immediately after, Necrozma emerged from the sea and possessed Solgaleo, causing it become Dusk Mane Necrozma. Ash tried to free Solgaleo, but was unable to stop Necrozma, and it fled into an Ultra Wormhole.

In The Prism Between Light and Darkness!, Solgaleo remained fused with Necrozma. The Ultra Guardians, with Lunala's help, pursued Necrozma to Ash's Poipole's home world, and learned that Necrozma was preying on the two Legendary Pokémon in order to absorb their light and restore itself to its Ultra form. After being asked by Naganadel to save Necrozma, Ash, Kiawe, Lana, and Gladion attempted to use their Z-Moves to supply Necrozma with Ultra Aura and separate it from Solgaleo. However, they were only successful in making it more powerful. Communication between the Guardians and their home base was soon reestablished. After Lusamine, Wicke, and Professor Burnet shared what they knew, they arranged for the people and Pokémon attending the Manalo Festival to follow the lead of the guardian deities and share a portion of their Ultra Aura with Necrozma. Combined with the Ultra Aura of the Ultra Guardians and their Pokémon, Necrozma received enough light to separate from Solgaleo. Solgaleo then joined forces with Ash, Gladion, and Lunala, giving Necrozma one last boost of power with the combined Ultra Aura of their signature Z-Moves, Searing Sunraze Smash and Menacing Moonraze Maelstrom. Through these efforts, Necrozma's strength was finally restored. After Ash and Pikachu bade farewell to Poipole, Solgaleo and Lunala led the Ultra Guardians back to Alola.

In Thank You, Alola! The Journey Continues!, Solgaleo returned to Alola to say goodbye to Ash, before taking him on a trip through Ultra Space. There, they came across an unknown Ultra Beast off-screen.

Pokémon Journeys: The Series

In Partners in Time!, Solgaleo appeared as a vision to Pikachu during his battle against Leon's Charizard.

Personality and characteristics

Solgaleo and Ash

In the original Japanese version of the anime, Nebby's official nickname is simply ほしぐも Hoshigumo, as opposed to Hoshigumo-chan. The -chan honorific is still used occasionally, with "Little Nebby" being used instead of Hoshigumo-chan in the English dub. In Now You See Them, Now You Don't!, Team Rocket caught sight of the unidentified Pokémon while Ash was buying donuts from their food truck. James surmised that the unknown Pokémon was the pre-evolved form of Koffing, and named it Protokoffing (Japanse プチドガース Puchidogars). This led to confusion when the trio saw Cosmoem in Revealing the Stuff of Legend!, causing James to assume that there was an intermediary phase it evolves into in Alola, which he dubbed Nanokoffing (Japanese カタドガース Katadogas), but this was ultimately debunked when they witnessed "Nanokoffing" evolve into the Legendary Solgaleo. After its final evolution, Ash and his classmates typically refer to it by its proper name, Solgaleo.

Nebby crying as a Cosmog

As a Cosmog, Nebby shared many traits with human babies. It slept and cried a lot, but was easy to amuse and was naturally curious. Its cries were quite powerful, and they caused nearby people and Pokémon to cover their ears. In A Masked Warning!, its cries were so powerful, it sent Pikachu flying back into a tree. Nebby was a very fussy eater and appears to have a preference for star candy (Japanese コンペイト konpeitō). It was also ticklish and enjoys playing hide-and-seek, as shown respectively in A Dream Encounter! and Night of a Thousand Poses!.

Nebby sleeping with Rowlet as a Cosmog

In Now You See Them, Now You Don't!, it was shown that Nebby tends to teleport people to places they are thinking or talking about. Rotom surmises this is because it knew little about the world around it, so it had to depend on telepathy and other people to develop its abilities. By the end of the episode, it had become attached enough to Ash, to the point where it would willingly teleport to him on its own whenever they are separated.

After evolving into Cosmoem, Nebby hardly spoke, moved, or emoted, reflective of its cocoon-like state. However, after evolving into Solgaleo, it appeared to have grown into a more mature version of itself physically and mentally, letting Lillie hug it, happily accepting the Star candy from Ash, and licking him affectionately. As a Solgaleo, it can create Ultra Wormholes at will with the help of a Trainer with a Z-Power Ring, a Solganium Z, and its Z-Move, Searing Sunraze Smash.