Arcs, or Major Disputes, are Disputes between 2 or more City-states of Valoran that are taken to the Institute of War and the League of Legends to be settled through months of matches between the actively participating factions.

There have been 9 major disputes or Arcs that have occured: Mirrorwater, Ceruleana, Discord, Shon-Xan, Hextech Revolution, Nyroth, Lines in the Sand, Divinity, and Black Winter.


This Arc Started when a mysterious meteorite landed in international territory creating a pool of mysterious silvery substance. 3 Factions initially began the Dispute, Demacia, Ionia, Noxus, and Freljord joined in later on and eventually won control of the "Mirrorwater" which was divided among the sub factions of the Freljord. Ashe and her Avarosan built a fortress out of it, Sejuani and her tribes made powerful weapons, while Trundle gave his share (Secretly) to Lissandra and she currently has it kept in secret in hopes of using it eventually to bring back the Watchers.


One of the side effects of the appearance of the Mirrorwater was the creation of a strange island made of a metallic silvery blue material similar to the Mirrorwater, On the Island was a powerful nature spirit Dubbed "Ceruleana" who could exercise control of the Seas. 6 Factions started off, with 2 factions withdrawing part way through. Demacia eventually won control of the Island and purified the island, bringing Ceruleana under their control as a spirit of Order, greatly enhancing their naval strength, giving Demacia the greatest Navy in Valoran.


As Ionia predicted during the Ceruleana dispute, the purifying of Ceruleana to the side of Order caused a massive disruption in the Cosmic Balance. This lead to a void rift opening up and a massive swarm of voidlings to sweep over Valoran. Many city-states fell before the might of the Massive Void swarm, assissted by Aatrox, Malzahar, and Shaco. All other factions eventually banded together and held off the Void invasion at the gates of Noxus. The Void was officially recognized as the Faction of Icathia, and the Void champions that were under the control of the Institute were freed. The Valoranian Capital of the Void territory is the ruined city of Icathia.


Following the devastation of Noxus lands due to the Void invasion, Noxus once again attempted to invade the southern islands of Ionia as a place to give shelter to the many displaced refugees. Ionia having had enough of Noxus's attempts to take control of it's lands fought against the action. This eventually escalated into all out war between Noxus and Ionia. Ionia once again repelled the Noxian invasion and Noxus was absolutely crushed. Due to events during this dispute, Riven had begun a reformation, but when Swain ordered Chemical bombings on Ionia when it was clear that Ionia was winning, Riven turned her back entirely on Noxus, though many reformists live in secret in Noxus.

Hextech RevolutionEdit

As a result of the void invasion, much of the sandstone in Shurima deserts were corrupted with Void energy. Mixing with ancient shuriman magic, this dark sand was a source of powerful arcane energy, providing an alternate fuel for hextech technology. Zaun, Piltover, Demacia and Bandle City rushed to Shurima for control of the Dark Sand to advance their technological advancements. Though Zaun ultimate won control of a large portion of the Dark Sand, Piltover and Bandle City were able to achieve huge leaps and bounds. Bandle City managed to find out how to refuel their ancient mothership with the Dark Sand and were able to travel to the moon and contstruct a lunar base. Zaun became a superpower city-state rivaling the power of Demacia and Noxus. During the arc, a Minor Reformist rebellion occured in Noxus, but was quickly crushed with the help of Zaunite reinforcements. Riven and many of the Noxian outcasts had moved to Piltover and have become fully integrated with Piltover after they had been healed due to medical advances made by Piltover into void contamination research and curing void contamination sickness.


As a result of the vantage point from Bandle City's new lunar base, they spotted a new continent upon the face of Runeterra. This continent was surrounded by a shimmering magical shroud shielding it from view from the ocean below, and it was in the midst of the Conquerer's Sea to the West of Valoran meaning that the area was filled with everlasting storms and few ever survived expeditions there. Thanks to the technological advances from the Hextech Revolution, airships were able to travel to the new continent. Over the coming months, the Freljord, Ionia, the Shadow Isles, and Bilgewater would all work to find out more about Nyroth and restore the devastated continent. Ionia ultimately came out as the overall victor of the Arc, but Bilgewater gained many rewards and opportunities that have led many to say that Bilgewater was the true victor of the dispute.

Lines in the SandEdit

It began on 16 May, 25 CLE, when Azir raised the Sun Disc above Shurima for the first time in more than two thousand years. After repelling a ferocious Noxian assault on his restored capital, and seizing the mansion of the Piltovian governor tasked with transforming a swath of Shurima into a suitably “civilized” corridor for its transcontinental velocitronic railway, Azir demanded Shurima’s admission into the League of Legends, declaring that his Empire would live again, more glorious than ever.

Azir’s Champions and Summoners proved their mettle on the Fields of Justice, and on 6 July, 25 CLE, the Council decreed that Shurima would be admitted as a member-state of the League, with Azir as its Emperor. The Shuriman Empire was granted dominion over its historic capital and the southern city of Dar’Khos, both of which are now protected by League decree, as would be the homeland of any member-state.

With the membership petition resolved, the hard-won truce that extended over that process broke apart. War returned to Shurima, as these three factions fought both on and off the Fields of Justice to stake their claims to the remainder of the Shurima desert.


A new nexus, aligned with divine magic, was discovered at the bottom of the ocean. The astonishing appearance of such a focal point of celestial energy was claimed as the realization of four factions’ prophecies:

Icathia: the City of Uun’Zek’Nare. Icathia sees the nexus as the dimensional anchor of an Icathian city “destroyed” by a Magelord armada in the Second Rune War, when Icathia was a rogue province of the Shuriman Empire.

Bandle City: the Launch Pad. Bandle City is built around the Mothership, which they revere as a sort of deity. Yordle culture bears an obsession with “getting it ready”. The appearance of this nexus has renewed interest in old prophecies about a “Launch Pad”. Though long believed to be purely figurative, this nexus might enable the construction of a platform for launching the Mothership far beyond the moon, deep into the cosmos.

Bilgewater: the Serpent’s Nest. Many supernatural beings perished during the Rune Wars, when mortal use of rune magic poisoned the arcanosphere. It is said that one such being, a powerful avatar of Nagakabouros, hid away from the encroaching tides of magical distortion within a fortified nest, sleeping over her eggs. The nexus could well be a manifestation of such an arcane pocket-dimension beginning to open.

The Freljord: Ylsa’s Memory. Lissandra has brought forward ancient texts that elaborate upon traditional stories of Ylsa’s Memory, a pendant said to have been worn by the Three Sisters, reunited after their deaths and then lost at sea. The ancient texts of the Frostguard have collected many different stories about the famous pendant worn by the Three Sisters. Its true power lies in the tantalizing promise of uniting the Freljord just as it once united the Three Sisters.

Black WinterEdit

The year is 26 CLE. The Black Mist has spread across Valoran, plunging its nations into a Harrowing seemingly without end. Only Demacia and Ionia have thus far shown the ability to drive it back: Demacia by calling on holy magic to banish the ghosts back to the realm of the dead, and Ionia by summoning the spirits of honored ancestors to mediate with the harrowed souls and restore balance. Having tried and failed on their own, the League’s quarreling member-states have at last agreed to band together in a joint effort. As the Demacian approach of banishing the spirits and the Ionian approach of summoning more spirits to Runeterra are antithetical to one another, the decision has come to the League of Legends, final arbiter among nations. A contest of arms upon the Fields of Justice will determine the victor.

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