Nuclear-Hydrangea pinging you as it's been almost 9 months! i went with the fantasy AU ^_^
Though the battle had been long, it was not particularly gruesome- the two had simply worked themselves to exhaustion. Perhaps this had been exacerbated on Évariste's part due to the exsanguination- blood magic had its price, after all. Panting, Lysanthir cautiously lowered his sword, smeared with red. The elf stood quietly before the crumpled body of the necromancer, his expression betraying little other than that he was tired. There he was, the monarch that Évariste so hated, and he had won. This time. It was a close call, and Lys found himself feeling especially lucky- perhaps next time he would not be so successful. He would need to train for that eventuality.
"Well? Are you satisfied? Or shall I truly strike you down now?" Lys offered, stepping closer, the tip of his sword dragging a thin furrow along the soil. As seamlessly as possible, he returned to a state of grace, standing stiff as a board and grasping his sword as if it were a mere ceremonial display. To the untrained eye, it looked like a classic example of good triumphing over evil... if you relied on stereotypical appearances alone. A foolish endeavor, though Lys certainly thought himself to be in the right. What Évariste and his commune took was his by birth, after all, and he could not tolerate such a group existing under his watch. It made him look weak. Besides... he'd heard that Évariste had stolen a noble's clothing while the poor soul travelled between castles, too. Was there no end to these insults?
"Stand, then, if you can. I will not kill you today," the king began, though he was uncertain of the intelligence of his decision. Why have mercy? If anyone were there to watch this scene, Lys surely would have killed him for the sake of appearances. "But the commune must go. That is my will."
The elf pauses, scrutinizing his enemy.
"... And I should like to never see you again, lest I regret my decision to keep you alive."
np: lys is trained in swordfighting so that's what he'll probably be using but feel free to do whatever suits your oc!