The dark elves were proud warriors, both swift and powerful, but they were not a race native to the world of Era. Indeed, they should never have existed, for they were the consequences of a war that should never have occurred.
Much like mana in the world of Era, every world harbors a particular energy. An energy that shapes the powers and nature of each race living within it.
Indeed, the invaders also had their own energy: vis.
A malevolent energy that led to death and destruction, as the entities born in the worlds that produce it also expressed such a nature.
But what would happen if one day, beings born of vis besieged a world devoid of it and began to live there?
The answer to that question is already known to the inhabitants of the world of Era, even if they don't realize it.