Sidian

Onyx redirects here. For the Pokémon, see Onix (Pokémon).

Sidian オニキス Onyx
Sidian in the Mega Voltage arc
Age	Unconfirmed[1]
Gender	Male
Eye color	Yellow
Hair color	White with black and red highlights
Hometown	Unknown
Region	Unknown
Animated series	Pokémon Horizons: The Series
Debut	The Ancient Poké Ball
English voice actor	SungWon Cho
Japanese voice actor	Yuki Onodera
Member of	Explorers
Rank	Admin

Sidian (Japanese: オニキス Onyx^[2]) is an admin of the Explorers and a recurring major antagonist in Pokémon Horizons: The Series. In the Mega Voltage arc, he and Coral promote new products of Exceed.

In animation

History

Pre-series

Sidian was one of the members recruited by Hamber to follow Gibeon's mission, being trained by him personally along with the other members of the team barring Spinel. Among the four who were recruited and trained by Hamber, he was the third to be recruited, after Amethio and Coral.

Pokémon Horizons: The Series

Sidian first appeared as a hologram in The Ancient Poké Ball, alongside the other Explorers's admins. The first time he spoke and was seen clearly was in Quaxly, We Can Do It, judging Spinel over his last failure.

He made his physical debut in Reunion at the Ancient Castle!. At Hamber's request, Sidian and Coral accompanied him to the Galar region. In the next episode, after tracking down Amethio's location, the group arrived at the ancient castle where Diana was living at. Despite Hamber ordering them to stay on standby while he secured their target, Coral and Sidian invaded the location. He had his Garganacl indiscriminately take out the Pokémon living in the castle before he and Coral cornered Liko and Roy, only to be stopped by the sudden arrival of Captain Pikachu. Once Cap took out Sidian's Garganacl, Coral snapped and recklessly ordered her Glalie to use Self-Destruct, allowing the Rising Volt Tacklers to escape and leaving the ancient castle in ruins.

In As Long as I'm with My Friends, Sidian and the other admins joined in a meeting to discuss the Explorers' next objective. Eventually, they decided to go after the Black Rayquaza.

In A Challenge from the Explorers, Sidian and Coral arrived in a seaside town in Paldea. Coral had led him there under the guise of finding something important, which was actually some rare Wiglett sweet buns. However, upon finding out they had sold out and that Liko and Roy had managed to get a box without even lining up, she left them a challenge letter on the back of Roy's Fuecoco. While Coral faced Roy, Sidian stepped in to take Liko on. Despite the rough start, the young Rising Volt Tacklers refused to give up and eventually broke through their foes' strategies. Impressed, the two Explorers decided to stop holding back, but were forced to withdraw after Sidian received a call to take part in mission involving the Black Rayquaza.

In The Plan to Capture Rayquaza, Sidian, Coral, and Chalce summoned the Black Rayquaza near Levincia by using a machine that generated an energy similar to that Terapagos emitted previously and had their Pokémon battle against the Sky High Pokémon. They started strong, unleashing powerful super effective moves, but lost control over Rayquaza once Dot managed to shut down the machine. Once again, Coral let her temper overcome her better judgment and commanded Glalie to use Self-Destruct, which collided with Rayquaza's Dragon Pulse. The resulting explosion was powerful enough to blast the Legendary Pokémon directly into the hull of the Brave Olivine.

In Welcome to Naranja Academy!, along with Coral, Sidian enrolled in Naranja Academy as part of the Tera Training. Sidian introduced himself to Clavell under the name Seasoning (Japanese: オニギリ Onigiri), much to Coral's amusement.

In Trending Terastallization! Dance, Dance, Quaxly!, Sidian was caught spying on Liko, Roy and Dot along with Coral by Clavell, believing that they were just wanting to know about their Academy colleagues, Clavell invited them both to watch Dot's battle against Iono, but eventually, Sidian left Clavell talking alone when Coral decided to go after food and Sidian went after her.

In Showdown! The Paldea Elite Four, it was revealed that Sidian managed to pass the first phase of Tera Training. During the Elite Four Tag Battle, Sidian confronted Rika alongside Tulip, but was defeated for insisting on protecting his ally's Pokémon. After a brief conversation with the Gym Leader about why this happened, Sidian left so Rika could begin her battle against Liko.

In The Terapagos I Don't Know, Sidian and Coral were seen with the other students during Clavell's speech that began the second part of the Training. Despite this, his Gym challenge was not revealed.

In Food Fit for a Kingambit!, Sidian decided to have food at the Anything Goes Café. Shortly after entering, he encountered Liko, Roy, and Dot again. When Dot's Quaxly accidentally crashed into Sidian's leg, he mistakenly assumed Dot had challenged him to a Pokémon battle. Seeing this as an opportunity to advertise and bring customers to the struggling eatery, Dot accepted the challenge and used Quaxly to battle Sidian's Garganacl. During the battle, the collision of Garganacl's Salt Cure and Quaxly's Low Kick caused salt to spread across the street, attracting the attention of customers. Although confused the battle ended without a winner, a hungry Sidian decided to partake in the eatery's new menu item, which he enjoyed.

In The Approaching Shadow!, Sidian and Coral surrounded Roy and Dot on Spinel's orders, abandoning their student disguise. In the next episode, Sidian and Coral battled against Roy and Dot to stall them, but before Coral's Glalie could finish off their opponents, they were interrupted by Grusha's arrival, so Chalce commanded the two admins to retreat. At their base the Explorers Admins gathered to ask Amethio if he had betrayed the Explorers by helping out Liko in escaping from a cave after seeing the footage recorded by Spinel's Beheeyem and why he did not catch Terapagos when he had the chance. Before Amethio could give a proper explanation, Gibeon arrived and expelled his grandson from the Explorers for helping their enemies.

In Infiltrating the System! Naranja Academy in Danger!, while Chalce hacked Naranja Academy's systems to steal data on Terapagos, Sidian and Coral were ordered to prevent anyone from interfering with the mission. Later, on top of the academy's bridge, he encountered Liko, who had been made aware of the sabotage and went to confront the Explorers. Garganacl initially fought evenly with Floragato, only for the former to gain the upper hand once Sidian Terastallized it. Refusing to back down, Liko Terastallized Floragato as well, giving her enough of a boost to defeat Garganacl. After his defeat Sidian acknowledged Liko's strength and told her not to forget his name before leaving and taking Coral with him, much to her anger. In the following episode, Sidian and Coral reflected over their defeats before enjoying a rice ball and sandwich, respectively.

In Over the Top!, Hamber ordered Sidian and Coral to follow the Rising Volt Tacklers to Area Zero. In the next episode, Sidian was observing the Rising Volt Tacklers, but had to find Coral when she went off on her own. After finding her, Sidian noted that she caught a Scream Tail. In The Pillar of Fire, Sidian and Coral witnessed the Rising Volt tacklers' battle against Lucius's Gouging Fire and Rayquaza from a distance. At the end of the battle, they departed from Area Zero to report their findings to their fellow Explorers.

In The Truth Revealed!, Sidian and Coral attended a meeting with the other Explorers where they reported the events that happened in Area Zero. Gibeon instructed everyone to prepare for the battle that will follow in Laqua.

In The Pokémon Paradise of Laqua!, after Pagogo removed the barrier keeping Laqua sealed, Liko, Roy, and Dot were greeted by Sidian, Coral, and Chalce. In the following episode, the Explorers admitted they were aware of Laqua's location from the beginning and just waited for the Rising Volt Tacklers to take down the barrier for them. Having achieved their goal, the Explorers decided to get rid of the Rising Volt Tacklers by battling them. Sidian used Garganacl to battle Liko's Floragato, but despite his defensive tactics, Liko was able to gain the upper hand.

In Guided by the Black Rayquaza!, the Explorers continued to prevent Liko's group from heading further into Laqua, only to be attacked by Onia and Zirc. This distraction allowed Liko, Roy, and Dot to run ahead and confront Gibeon. Later, Sidian and his allies supported Gibeon by utilizing machines designed to stimulate the ground where the Laquium was buried, forcibly activating it and making it expand uncontrollably. Sidian, Coral, and Chalce used their Pokémon to block any incoming attacks that would damage the machines.

In Where the Adventure Leads, once the Laquium had been purified by Pagogo and the Six Heroes, Sidian watched in shock as Gibeon's body faded away. Disappointed by his former leader's failure, Spinel announced that he would surpass Gibeon and that the Explorers would take control of Laqua. Sidian and Coral objected to Spinel's sudden ambitions, but were told by Chalce to just keep watching. Using a device he developed, Spinel infected five of the Six Heroes with Laquium. The infected heroes run wild, causing Laqua to begin collapsing on itself.

In HZ095, a year later Sidian and Coral were at the Exceed's Test Center showcasing the use of Laquium with the Strong Spheres in battle. While Coral was entertaining the crowd, Sidian soon spotted Liko and Roy among them and informed her of it. Since the public did not know the identities of the Rising Volt Tacklers, they decided to pull the two in for a Double Battle, where they were evenly matched. The two admins resorted to using the Strong Spheres to defeat Crocalor and Meowscarada, though both were ignorant to the harmful effects of Laquium towards their own Pokemon. After Uruto intervened with his Sableye, Coral recklessly commanded Glalie to use Self-Destruct, which did nothing to Sableye and merely allowed Liko, Roy, and Uruto to escape. Afterward, Sidian and Coral met with Chalce, who noted that as long as the Explorers have the public on their side, Liko's group couldn't do anything to them.

In HZ109, Sidian and Coral arrived at a city for a promotion and the two parted ways in order to look for some food once it concluded. Arriving at a restaurant, Sidian and his Garganacl entered, only to be recognized by the crowd and swarmed, but an Exceed representative took them away. The representative had them board a Flying Taxi and they were arriving to their next location when Dot's Tinkatuff knocked Corviknight out of the sky in order to acquire its feathers. The cabbie and his Corviknight fled after realizing who the aggressor was, leaving Coral and Sidian to fend for themselves. As they witnessed Tinkatuff forge a new hammer, Dot arrived, resulting in Sidian helping Coral battle her with their partners. During the battle, Coral's Glalie interrupted Tinkatuff's forging, but Tinkatuff was able to forge her new hammer and evolved into Tinkaton, who quickly defeated Glalie and forced the two to run away.

Character

Sidian overall appears to have a serious and stoic personality, hardly showing strong emotions at times, although he can still get frustrated or irritated when insulted by others, such as his fellow admin Coral. He usually obeys the orders of his superiors such as Hamber without much issues. Like Coral, Sidian can at times be less disciplined and more aggressive than his fellow admins, though less often than Coral. Sidian has a ruthless and combative disposition when operating, as seen during the siege on Diana's castle where he not only disobeyed orders to standby, but also commanded his Garganacl to indiscriminately attack and take out every Pokémon in his path by having them inflicted with Salt Cure. In Infiltrating the System! Naranja Academy in Danger! he had his Garganacl attack both a security guard and his Psyduck with Salt Cure for getting in their way, further showing his ruthless nature.

Nonetheless, Sidian has his own personal limits and considers even Coral's volatile actions to be reckless. Sidian is notably level-headed and calm, and because of this he often stays around Coral to keep her volatile behavior in check. In line with his level-headedness, he appears to be surprisingly honorable, as shown in A Challenge from the Explorers, politely asking Liko to be his opponent and to fight with honor, without the use of dirty or underhanded tactics. Sidian's sense of honor is further shown in Showdown! The Paldea Elite Four, telling Rika that he couldn't allow Tulip, his Tag Battle partner, to suffer to guarantee his victory, and further remarking there's no point in disgraceful victories. His sense of honor and personal limits were further shown in Where the Adventure Leads, where he initially objects to Spinel's ruthless and unethical actions in unleashing the Laquium on the Six Heroes and taking over the Explorers. However, Sidian's willingness to subject his Garganacl to the effects of the Laquium without care for its pained condition and even have it brutalize defeated opponents a year later ultimately demonstrate hypocrisy on his part by proving his actions antithetical to his own supposed morals.

Pokémon

As seen so far, Sidian appears to specialize in Rock-type Pokémon.

On hand

Garganacl

Debut	Reunion at the Ancient Castle!
Voice actors
Japanese	Taku Yashiro
English	Bill Rogers

Garganacl is Sidian's first known Pokémon as well as his main partner. It is capable of Terastallizing into a Rock type.

In Rivals in the Dark of Night!, Garganacl indiscriminately defeated most the Pokémon living at the ancient castle before being used to battle Liko and Roy. Captain Pikachu arrived in time to rescue them and Garganacl tried to hit him with Salt Cure, but Pikachu was able to avoid it and hit Garganacl with a Volt Tackle, temporarily taking it out of the fight. However, when Coral recklessly commanded Glalie to use Self-Destruct, much to Sidian's protest, Garganacl was unfortunately defeated by Glalie's attack, which took Glalie itself out as well.

In Showdown! The Paldea Elite Four, Garganacl was used by Sidian in the battle against Rika. Largely because of their way of battling, Sidian and Garganacl were easily defeated.

In Food Fit for a Kingambit!, Garganacl was used by Sidian in the battle against Dot and Quaxly. The battle ended without a winner after Dot decided to use the aroma of the new noodles and the salt that spread in the battle to attract new customers to Anything Goes Café.

In Liko and Amethio, Garganacl and Glalie teamed up yet again against Roy's Fuecoco and Dot's Quaxwell. The battle remained firmly on Sidian and Coral's side up until Grusha interfered to protect Roy and Dot from the Explorers duo. Once Chalce ordered Sidian and Coral to retreat, Garganacl was recalled. In the next episode, Garganacl was used to battle Liko's Floragato, and although it used Recover to heal itself, it was defeated after both Pokémon were Terastallized, forcing Sidian to retreat.

In The Rising Volt Tacklers vs. The Explorers!, Garganacl battled Floragato once more. Despite having an advantage in power, defense, and Terastallization, Floragato was able to gain the upper hand on Garganacl. The battle was interrupted by Friede, Onia, and Zirc in the following episode.

In HZ095, Garganacl was used alongside Glalie to battle Meowscarada and Crocalor, being empowered by Laquium. It defeated both opponents before they could use Terastallization without even hearing its Trainer's commands. After Uruto's intervention and Coral's reckless use of Self-Destruct, Uruto, Roy, and Liko then managed to escape.

Garganacl's known moves are Salt Cure, Wide Guard, Stone Edge, Iron Defense, Recover, and Heavy Slam.

Aerodactyl

Debut	A Challenge from the Explorers

Aerodactyl is Sidian's second known Pokémon, which he mainly uses for aerial transport.

None of Aerodactyl's moves are known.

Traveling with

Rotom Phone

Tera Training

Sidian has participated in the Tera Training of Naranja Academy. His evaluation and overall score are:

• Tulip - Battle Exam - Basic; Approved (prior to Showdown! The Paldea Elite Four)

Extracurricular activities

As a student at Naranja Academy, Sidian participated in the following events:

• Elite Four Tag Battle: with Tulip Vs. Rika (Loss; Showdown! The Paldea Elite Four)

Voice actors

Gallery

Artwork

Art from Pokémon Horizons: The Series	Sidian's Naranja Academy uniform	Concept art of Sidian's Naranja Academy uniform	Concept art of Sidian's second outfit

Eyecatch

Other

Expression sheet of Sidian from Pokémon Horizons: The Series	November 2023 Calendar by mojacookie[3]	In artwork from "After the story" by mojacookie
Pokémon Fan No. 85 November 2023 Exclusive Art

In the manga

Pocket Monsters

Sidian briefly appeared in a flashback in HZM03.

Trivia

• When Terastallizing his Garganacl, Sidian uses the phrase tower over all (Japanese: そびえたて tower above all).

Names

Seasoning

References

Related articles

Explorers Boss: Spinel Administrators: Hamber • Coral • • Chalce Agents: Onia • Zirc • Indy • Rubella Locations: Mount Pericarp • Laqua Exceed • Amethio's mansion Exceed's Test Center Objects: Laquium • Strong Spheres Former: Lucius • Rystal • Gibeon Cervantis • Amethio Related: Maria

This article is part of Project Anime, a Bulbapedia project that covers all aspects of Pokémon animation.