After having my way with the White Rider—though it was pretty disappointing—I finally subjugated him.
I first got rid of his horse, who—for some funny reason—was called Lackey.
That just went to show how much of a narcissist my opponent was.
Still, I showed the pure white creature no mercy as I killed it.
The way the horse screeched in both surprise and fear made me derive at least some form of satisfaction before it finally faded into nonexistence.
Afterward, I turned my attention to its master.
Using Death's blade, which had the ability to afflict 'death' to anything, I was able to kill The Conqueror.
I had initially thought it wouldn't work because one of the Conqueror's abilities was to rule over anything that afflicted him.
It also had an especially annoying trait of evolving the moment it was afflicted with a particular attack.
That way, one could say that if it survived death, it would be able to evolve past it.