WinterSnowfall: Anyone can pick a "cool" online bastard lunatic name. That's one of the steps that comes with accepting your legal name :P.
Yours seems to deal poison damage, which is also cool... depending on your enemy type.
You're telling me Winter Snowfall is not your legal name? :-P
Yeah, my damage is restricted to enemies with high INT. Most orcs are rather immune. You probably know the problem. Foes with no concept of "Cold Logic" are hard to hit...
OnTopic:
To specialties of the German system:
Here you can have an artists name, with will be on your ID and passport. But you can't have it "just like that", you have to prove that published to or performed in front of a noticeable audience. Never tried it, so I don't know the amount of paperwork or fees involved. I guess, in Germany, at least a lot of paperwork...
Also, when you marry, you have three options concerning your last names, but there is one rule: One of the spouses' names becomes the Family Name. The name will be passed on to any children.
One changes it to the spouse's. The traditional way, although it's fine if a man takes the wife's last name. Jane Foo marries Joe Bar and becomes Jane Bar. Simple. Children are Peter, Paul and Mary Bar.
Each one keeps their name. Jane stays Foo, Joe stays Bar, but if Bar is selected as Family Name the children are still Peter, Paul and Mary Bar.
One keeps their name, the other changes, but keeps the old name additionally. Still the one keeping their name is the Family Name. So Jane stays Foo, Joe is now Foo-Bar, the children are all Foos.
Sadly, in Germany it's not possible to have both parents (and children) take on double names. No family of Foo-Bars. AFAIK most of our neighbours aren't that finicky, and some people marry in Switzerland or Denmark just because of that (when you marry abroad, the foreign rules apply, iirc).