Schlacht

"This is a battle with the survival of the demons on the line, a contingency plan for defeat, and a fight for the sake of demons a thousand years later."

- Schlacht to Frieren

Schlacht (シュラハト), also known as the Omniscient Schlacht (全知のシュラハト), is a demon who was said to be the Demon King's confidant. He seems to have the ability to see the future, using magic said to be capable of seeing forward up to a thousand years. During the reign of the Demon King, he commanded the Seven Sages of Destruction. Schlacht was said to be defeated by Hero_of_the_South, who took him down in a battle with him and all of the Sages of Destruction, about 10 years before the Demon King was defeated.

Personality
Schlacht is shown to be calm and composed. As a future Seer who had seen countless possibilities, this might have contributed to his composure. He was not daunted by the idea of dying, unlike the majority of his race, and Macht even remarked that he had the "face of someone going to their death" when the former talked about the battle with Hero_of_the_South. Schlacht has shown concerns about the future of demons as a species, something quite unnatural and uncharacteristic for demons, who are individualistic and asocial. He was willing to participate in a battle which may lead to his death and took measures to ensure the survival of the demons even after a thousand years.

Although he holds a high position, Schlacht appears to be amicable and placating towards his allies. Even though he was well aware that his subordinates follow him only out of fear, Schlacht still opted to approached Macht with a proposal first instead of an order, and only threatened him when his initial invitation was turned down. However, he is ready to threaten the use of force to make them obey his orders and make an example of those who defy him. Even then, as seen with Macht, he still appeared to placate his ally's sensibility, acknowledging the other's dislike for conflict and deescalating by saying he did not want to fight.

Appearance
Schlacht has light-colored hair, which is hidden under his hood. He has two long horns curving inwards coming out from the back of his head. He seems to have black sclera and white eyes, unlike most demons. Schlacht wears a mask under his nose which conceals his mouth.

He wears a long, flowing cloak with two metal cauldrons on his shoulders. Underneath the outer cloak he wears a darker coat with a hood, which has holes to accommodate his horns. Schlacht wears a light colored robe with an array symbols which looked like eyes across his chest. He also has a necklace with a oval pendant.

History
The Omniscient Schlacht was famously the most trusted confidant of the Demon King. He was said to possess magic which could see a thousand years into the future. He appears to be responsible for relaying orders of the Demon King and coordinating the activities of his generals. According to Macht, a Sage of Destruction, Schlacht had been forcing him to participate in his plans many times since a long time ago.

About 10 years before the ultimate downfall of the Demon King, Schlacht gathered all the Sages of Destruction for a confrontation with Hero_of_the_South, who was renowned as the strongest Hero of mankind. With the Miraculous Grausam, one of the Seven Sages of Destruction, Schlacht approached Macht of El Dorado in order to enlist him in the fight. He would later order Grausam to delete Macht's memories, predicting that in the future his memories were going to be read. Therefore, he would remove the memories of the battle to ensure that nobody could witness it. According to the tales, in this decisive battle, Schlacht and Hero_of_the_South took each other out, after the Hero had slain three other Sages of Destruction. However, this might not be what actually happened at the confrontation.

Abilities
Clairvoyance: Schlacht is capable of seeing the future, said to be able to see forward up to a thousand years. According to his own words, he can see "countless future visions" and their possibilities, thus deriving his conclusion and actualize the outcome he wished for. If the message he sent to Frieren was not a lie, Schlacht might actually be capable of seeing ahead a thousand years.

Trivia

 * Schlacht is German for battle and slaughter.