The War of the Fallen Angel took place 950 years ago, between the Dead Gods and Malphas and his legion of demons. Malphas was a god, but he had a taste for ruining peoples lives. Malphas would offer mortals gifts, but there was always a catch or a curse. Twisting people's desires against them to watch them destroy themselves was his favorite pastime. Eventually the other Gods had enough of this behavior, and cast him into the pits of the abyss to spend eternity tortured by demons. This plan backfired however, as Malphas thrived in the abyss. Malphas was an agent of chaos, exactly like the demons he was sent to live amongst. Eventually, Malphas, through his cunning, convinced the demons to follow him, and Malphas became the king of demons.
The Demons were largely unorganized, unlike their close relatives the devils, until Malphas organized them into a proper army. He sorted out the abyss, giving certain areas as “domains” to particularly powerful demons. Malphas kept the demons just unorganized and chaotic enough to make them happy, but organized enough to be able to use them when he needed them.
Malphas eventually promised the demons an era of destruction and chaos on the surface if they followed him into battle. The demons didn’t need much convincing, and they launched an invasion on the material plane. Malphas’s intent was to draw the gods down from their realm so he could defeat them as revenge and go back to terrorizing mortals.
Malphas opened a rift in The Spire, and a colossal battle took place, between all the gods and the army of demons, with the entirety of The Spire as the battlefield. The battle raged for years, destroying everything in its wake.
Eventually, after 5 long years of war, a mysterious god named The Three Faced God appeared. The Three Faced god wielded enormous power never before heard of, and annihilated all of The Spire with a wave of their hand, and everyone that was in it. In the blink of an eye, every god that had ever walked the earth was gone, except for the Three Faced God. Malphas slithered back to the abyss, defeated, but not killed.
The kingdom of Valtoria was devestated by the destruction the Three Faced God caused, but were thankful to them. The Three Faced God saved the rest of the country from Malphas's destruction, and the Three Faced God became the new primary god for Valtoria.