Serpentine

The Serpentine are an ancient race of reptilian humanoids who were once the dominant species of Ninjago. They warred with each other for countless years until banding together during the First Serpentine War to fight against the humans. Led by the Sons of the First Spinjitzu Master and the Elemental Masters, the people of Ninjago rose up and locked them away in five separate tombs, one for each tribe (Anacondrai, Hypnobrai, Fangpyre, Constrictai, and Venomari). Four decades after the war, they were released by Lloyd Garmadon and Pythor, who united the five tribes in a bid to conquer and destroy Ninjago. After claiming the Four Silver Fangblades, Pythor unleashed the fabled Great Devourer from the Lost City of Ouroboros. The colossal serpent consumed Pythor and wreaked havoc on Ninjago City, before being killed by Lord Garmadon.

After the death of the Devourer, the Serpentine were trapped in the tomb of the Stone Army. When the Ninja were searching for the hard drive containing the Digital Overlord, they found the Serpentine, and Acidicus told them of the legend of the Golden Master. Shortly after, a group of Nindroids attacked the Serpentine, but the Ninja defended them and defeated their adversaries. Though Skales declined to aid the Ninja in their quest any further, when the Golden Master attacked Ninjago City, the Serpentine helped its citizens to flee below ground and escape the ensuing destruction. Pythor, who had been aiding the Golden Master, was turned minuscule after swallowing a shrinking pill.

With the Golden Master destroyed, the Serpentine resumed their lives in Ninjago, having redeemed themselves after protecting the city's people. When the Ninja were rallying people to fight against Chen and his army of fake Anacondrai, the Serpentine joined the battle at the Corridor of Elders. Despite the new alliance, the fake Anacondrai were too powerful—leading Garmadon to sacrifice himself and be banished in order to free the spirits of the original Anacondrai to curse Chen's army. Following the battle, the Serpentine continued to live their normal lives while no longer having problems with humans for their help.

Many years later, Krux used The Great Devourer for to breed an Vermillion Army, to conquer Ninjago, they were finally defeated after being lost in the Temporal Vortex.

Following a lengthy period of laze months after the Oni Invasion, the out of shape Ninja embarked on a quest to help Professor Clutch Powers explore an Ancient Pyramid, with the purpose of honing their fading Ninja skills. In the process, they accidentally freed vengeful Serpentine sorceress Aspheera from her magical entombment, leading her to steal Kai's Fire power and raise an army of mummified, fire-wielding Serpentine in an attempt to claim the Scroll of Forbidden Spinjitzu and exact her revenge on the "treacherous deciever" who defeated her with the very same scroll. This culminated in a standoff in the secret base beneath the Monastery of Spinjitzu where Zane managed to defeat Aspheera and her army with the second scroll the Ninja had stolen from The Explorer's Club, though Aspheera managed to momentarily break free, unintentionally banishing the power-corrupt Nindroid to the Never-Realm, only to be imprisoned in Kryptarium Prison afterwards.

Prehistory
According to Serpentine legend, the Serpentine were created at an unknown point in time by the First Spinjitzu Master (However, he may have taken them from the Realm of Chima instead).

The First Spinjitzu Master feared the threat of the Golden Master and wished for there to be beings who would defend Ninjago should the Golden Master ever come into reality.

Ancient History
In the time of the First Spinjitzu Master (1000 years before the events of Season 11), Humans and Serpentine were at peace, However, it was fragile. Humans could not enter Serpentine Land and Serpentine could not enter the villages of humans, this was agreed on by the First Spinjitzu Master and the King of the Pyro Vipers: Mambo the Fifth.

One day The Sons of the First Spinjitzu Master entered Serpentine Land and were captured. Aspheera agreed to free Wu and Garmadon, but only if they promised to teach her the secrets of Spinjitzu. Wu and Garmadon promised but Wu was the only one to keep his promise. After Wu taught Aspheera spinjitzu, she tried to overthrow King Mambo the Fifth and launch an invasion. Wu and Garmadon used the Scrolls of Forbidden Spinjitzu to stop her and she was magically entombed in the Ancient Pyramid. Eventually the Pyro Vipers died off and the Ancient Pyramid was the last survivng piece of their Culture.

Soon afterwards,the five other serpentine tribes came into existence. Fearing the dawn of the Golden Master's reign was imminent, the Serpentine tried to warn the people of Ninjago, but they wouldn't listen, and instead looked upon the Serpentine as enemies. The Serpentine then tried to force the people underground, but they failed, even using the young Great Devourer to scare them below the surface. After their failed attempts to protect the people, the Serpentine were seen as monsters.

Serpentine War
The lack of trust between Ninjago's citizens and the Serpentine started the Serpentine War. As the war progressed and as time went by, tensions between man and snake began to die down. However, seeking to spread chaos, Chen told each side that the other was going to attack, which restarted the war.

The Elemental Masters once again met the Serpentine in battle. As the Elemental Masters began to win, the Anacondrai, led by Arcturus, appeared and began to overwhelm them.

In another battle, the Elemental Masters battled the Anacondrai once more. As they began to win, one of the Elemental Masters (Cole's ancestor) sided with the Serpentine and the Elemental Masters lost once more. Later, as the Elemental Masters began to walk home from battle, defeated and discouraged, Garmadon realized that they could use the Sacred Flutes in order to defeat them, seeing a man use one to put a small cobra in a trance. The Elemental Masters used the flutes and drove the five Serpentine tribes into five separate tombs. As punishment for their war crimes, Wu and Garmadon had Arcturus and the other Anacondrai Generals banished to the Cursed Realm. Decades later, Chen would meet the same fate, and rightly so as he was the reason for the war's resurgence.

War For All of Time
The Vermillion are a faction of antagonists, being a major threat in The Hands of Time. They are the first-generation progeny of the Great Devourer, appearing as masses of snakes that can merge into humanoid forms. With armor forged by Ray and Maya and the leadership of Krux and Acronix, the Vermillion's main agenda is to consume everything in their path, much like their progenitor.

The Vermillion commanders Machia, Raggmunk, and Blunck were selected by Krux as the strongest and most cunning of their species. They are capable of controlling the other Vermillion warriors through a hive mind until Acronix and Krux fired the Vermillion commanders and used the helmets of Blunck and Raggmunk to control the Vermillion warriors themselves.

Shortly after the defeat of Krux and Acronix of the past you were defeated, their future versions arrive with their weapon Iron Doom, along with the Vermillion who are the progenitors of the The Great Devourer

With control of the Vermillion, the Time Twins telepathically smashed the rest of the Vermillion warriors into their component snakes, which were absorbed by the Iron Doom. Under the twins' orders, the Vermillion snakes ultimately gave life to the machine. Eventually, it would become lost in time after Wu ripped out the Reversal Time Blade from the Iron Doom's time apparatus.

Snake King
The supreme leader of the Serpentine, usually a General who manages to assert their authority over the others. Pythor was the first Snake King after the Serpentine were locked in their tombs. It is a purely political title that has no physical changes to the Serpentine who achieves it, although Skales chose to wear a crown to confirm his position.

General
The leaders of each Serpentine tribe, identified by the long tail replacing their legs and their possession of their tribe's Serpentine Staff. Usually the highest rank of Serpentine, with the "Snake King" title coming into play if a General wishes to unite the tribes as one.

Warrior
Powerful fighters in the Serpentine ranks, generally less numerous than Soldiers or Scouts. Often appear similar to their corresponding General, but with legs instead of tails and slight color variations (e.g. Lizaru has green head spikes, while Acidicus has white head spikes).

In the Spinjitzu Spinners game, Warriors have 1100 SP, with 500 SP in their dominant element, 300 SP in a secondary element, 200 SP in a tertiary element and 100 SP in a final element. So far, they are the highest rank of Serpentine to appear in Spinner sets.

Soldier
The regular fighters of the Serpentine forces, identifiable by having less elaborate heads than Warriors or Generals. They usually have two large, stout fangs protruding from their mouths.

In the Spinjitzu Spinners game, Soldiers have 1000 SP, with 300 SP in three elements and 100 SP in the last element.

Scout
The lowest-ranking members of the Serpentine (not counting their Mini Snakes), Scouts presumably play a supporting role in combat, gathering information on targets and backing up their stronger allies in battle. They have "normal" LEGO minifigure heads, but with distinctly reptilian features such as scales, fangs, and slit-like pupils. Most have small hoods or armor plates on the backs of their heads.

In Spinjitzu Spinners, Scouts have 900 SP, with 300 SP in their dominant element and 200 SP in the other three elements.

Characteristics
The Serpentine generally appear as scaly humanoids with snake-like heads. Generals have snake-like tails replacing their legs, which appears to be symbolic of their position; as soon as a different snake takes dominance in a tribe, its legs will become a tail and the conquered Serpentine will have its tail replaced by legs, although every member in the Anacondrai Tribe has tails. It is possible that similar changes would occur if other Serpentine of different ranks fought to increase their standing in the tribe (e.g. a Scout attempting to become a Soldier-ranked Serpentine, or a Soldier attempting to become a Warrior-ranked Serpentine). It is unclear what would happen if a Serpentine General perished without being challenged by a fellow tribes mate—presumably, the next-strongest member of the tribe would become General by default.

In addition to proficiency in melee combat (both unarmed and with a variety of weapons), all of the Serpentine tribes have unique abilities: the Hypnobrai can hypnotize others into loyal servants or sleeper agents; the Fangpyre can turn anything they bite into a snake; the Venomari are resistant to acid and can spit hallucinatory venom; the Constrictai have powerful grips and superior burrowing abilities; and the Anacondrai are capable of turning invisible and swallowing people whole. However, all Serpentine are vulnerable to the music of the Sacred Flute, which causes them extreme discomfort and negates some of their abilities.

Members of different tribes likewise possess the ability to breed with one another, although the results of these bonds result in hybrid mutants who lack powers. Children coming from such unions are often looked down upon in Serpentine society: one of which was Clancee.

At birth, Serpentine first start off as young vipers, seemingly identical to regular snakes but with the powers of their tribe. As they grow and mature, however, Serpentine children will eventually develop their legs, alongside the rest of their limbs.

Culture
The Serpentine are vicious and warlike creatures, and their society appears to measure all things in terms of power. They solve disputes and seek entertainment in the Slither Pit, effectively a gladiatorial combat where they determine superiority by one participant being more powerful and cunning than the other. Many Serpentine look down on other species, out of arrogance or anger at being sealed away by the other inhabitants of Ninjago. They are predisposed to combat and violence to achieve their goals and are not adverse to using dirty tricks or superior numbers to overwhelm their enemies.

This aggressive mindset often hinders the Serpentine more than it benefits them, as fighting is prevalent among Serpentine tribes, and even among different ranks within each tribe. On the other hand, Serpentine are unwaveringly loyal to those who can conclusively demonstrate their superiority, readily following every command of such individuals—at least until their leaders show signs of weakness or incompetence.

However, some positive traits have been observed among the Serpentine. They are capable of camaraderie and friendship, as seen when Skales and Fangtom greet each other as old friends despite their tribal alignments. Additionally, Pythor sought to awaken the Great Devourer specifically to avenge his race on the surface-dwellers who sealed them away, implying that he genuinely wants to see Serpentine dominance for their own sakes. Likewise, despite having been the one to devour his tribe, Pythor was ultimately against the idea of tarnishing their name in death, getting past his own grudges to avenge the mockery that had been done to his people.

The Serpentine also seemed to have a righteous sense of justice, being quick to act in preparation for the arrival of the Golden Master, though some of their methods were questionable. Ultimately, while meaning well, their paranoia and recklessness in trying to stop their war with the humans only helped start it, and feeling wronged and unknowing of the true situation, felt they deserved vengeance on the humans for what had happened.

Following their imprisonment in the Stone Army Tomb, the Serpentine sought more pacifistic reforms, seeking to atone for their ways. As a result, nearly all of them became much more peaceful, promoting politeness and courtesy. Despite this, as a result of the past, they nevertheless remained somewhat wary of humans, but ultimately came over this in order to help them upon the attack of the Golden Master, finally bridging the gap that had separated the two species for so long. As a result, the Serpentine began to venture out onto the surface, regularly interacting with the humans as generic citizens.

Despite these pacifistic reforms, however, some Serpentine, though no longer criminals, nevertheless preferred their old ways of combat and fighting. Multiple members, most notably Mezmo, continued the tradition of the Slither Pit at Yang Tavern and even invited non-serpentine, such as humans and Skulkin, to participate.

Trivia

 * "Serpentine" is a real word, meaning "snake-like" or "related to snakes." However, the Ninjago term is pronounced with an "e" sound in the final syllable (Ser-pen-TEEN), while the real word has an "i" sound (Ser-pen-TYNE).
 * Lloyd was betrayed by every single tribe of Serpentine he allied himself with.
 * In early concepts, Lord Garmadon was the one intended to release the Serpentine.
 * Despite believing they were created by the First Spinjitzu Master, the Serpentine's true origins are ambiguous. According to Tommy Andreasen, there's a chance of a connection between the Serpentine and the tribes of Chima.
 * Each of the four original Ninja was affected by a different tribe that corresponds to them.
 * Cole was hypnotized by the Hypnobrai in "Rise of the Snakes."
 * Jay accidentally pricked himself with the Fangpyre's fang in "Once Bitten, Twice Shy."
 * Kai was intoxicated by the Venomari's venom in "Can of Worms."
 * Zane was almost choked to death twice by the Constrictai in "Can of Worms."
 * Serpentine powers are not connected with the elemental powers.
 * All the Serpentine are outstanding diggers, able to dig even faster than they can walk (or wriggle, if they have a tail). The Constrictai are the best diggers among the Serpentine, able to dig much faster than the others.
 * Although there are many villainous factions, the serpentine have been the villains that have fought the Ninja the most.
 * Venomari, Constrictai, Fangpyre, Hypnobrai, and Pythor, the last Anacondrai member, in Season 1, Season 2, and Tales from the Monastery of Spinjitzu, the Vermillion in Season 7, and the Pyro Vipers in Season 11.