As such, he does not die. He just simply does not.

He can be killed, sure. You could burn him to a crisp or throw him off a cliff or push him into the Eye of goddamn Harmony and kill him. But he doesn’t die.

He’s too classy to die. He is un-alive for long periods of time, living-impaired, if you will, sure, but he doesn’t ever die.

For he is Death’s Champion. He is the Master.
And he just doesn’t.