More in line with the original intent (although I'm sure I could find a theme song to go with the Sublime Arcanamach, and a band sounds cool), I've had an idea for a character based off
these two songs. The lyrics are in German, but if your google-fu is strong enough, finding english translations shouldn't be hard. I found them on my first try, so that's saying something.
The idea would be a Hellfire Warlock, possibly under 10 years old (Age tables in the PHB? Never heard of those
). A little girl giggling merrily as she kills people left and right just has this certain... je-ne-sais-quois to it. (Can you tell I'm a Mariko fan?
)