Leon stood in front of him, He was approaching Leon and he said," Leon you have a pretty funny name in my perspective. But it all ends here, you were a good enemy." Leon said, "au revoir. I don't know the true meaning of this word, but it's used for an end." The power of Prometheus was on the verge of fading away, it was the last blow. Leon quickly materialized a sword from his hand and slashed him. However, he was only scratched, and he appeared behind Leon to stab him. Leon suddenly turned back and said," Diseases won't work on you, then what about something which is not a disease. Leon crashed into the ground at the moment, he was not able to understand what happened to his body. Leon said," even if you are devils you are in a human body, and it has its limitations." Prometheus screamed," what had you done, you bastard Leon!" Leon said a specific name and it was 'Thrombocytopenia. it was the name of the disease that he cured. He activated his eyes and transferred the disorder to the incubus. It's a disorder that decreases the platelets in your body and makes your body fatigued. He said to the devil," You may be thinking that why I didn't lose blood through all my wounds and that is because I gave myself a disorder and that is 'Thrombocytosis' and disabled it after the wounds have healed. And by the way, my name is not Leon, it's Sweyn Lamberg. And 'au revoir'. The devils vaporized into thin air.