Yeah. They are a little OP.
On that note:
City/civilization name: Ruin
Race: Death elves: a subspecies of elves tainted by an evil death god. They seek to kill or enslave anyone not a part of their "perfect" race, all in the name of their god. They will try whatever they can to sow the seeds of death and evil, and wish to force all tto worship their god and be subservient to their empire. They have unquestioned loyalty to their god, and often will choose to join him than to be crippled.
Physically, they invariably have pitch black hair, bloodred eyes, and pale skin that has an unearthly glow.
They are governed by the Oracle, who they believe is a connection to their god. The Oracle has absolute power and is believed to be a sacred vessel possessed by their god, so only their high priests are allowed to even see the Oracle, and only the lesser priests are allowed to speak with the high priests.
Almost every aspect of their society deals with the death god. They are an arrogant people, believing their god has made them absolutely perfect, and the non-priestly people often argue about who is highest in his standing and who is most perfect among them. This arrogance give the race as a whole a disrespect for other races and their deities. The priests enforce equality, saying that their purpose is to worship their god and spread his path rather than argue amongst themselves.
Theme: Dark-elven death fanatics
History:
Their legend of the beginning of their race
Atop a plateau by a river, a group of elves founded a city. Soon after its beginning, a strange being approached them. He had an aura that felt like death, and he called to them, "Be my servants in this world. If you follow my path, you will be perfected and shown the truth, for I am a god." Angry at this being for his claim, one of the elves attacked him, but the arrow just dissipated in shadow. The god morphed his body into a grotesque mockery of life, and chained him to the ground with a black metal. They called him Ruin in their language and renamed the city after him.
The Age of Ash
When their city was utterly destroyed near the end of the Age of Glory, many groups left the plateau in self-imposed exile for failing their master, going their own ways and wandered, killing or converting all they met. Those who converted slowly became like the others in physical appearance, and were soon indistinguishable. The priests, Oracle, and some of the most loyal followers stayed behind to defend their "sacred" ground. They were utterly annihilated. Near the end of the Age of Ash, all of the groups felt the time had come to return to the plateau. The only things that remained were a tattered piece of cloth that had been the flag of the city, a five foot cube of the same dark rock that had formed the walls, and a mysterious chain of black metal, all from the being that calimed godship.
Reclaiming: For Ruin!
They chose the leader of the largest group as the new Oracle, and picked some of the other leaders as the priests. Before the official appointment of the Oracle, he called out, "Many years ago the world pushed us from this sacred place! We suffered by their hand, and they shall pay! This city was the jewel of our empire, and it so it shall be once more! For Ruin!" At this brief speech, the people were roused, and soon the work was done to build a temporary wooden settlement.