Prince of Void ooh

That actually reminds me a bit of Lord English and how he's cracking the void right now

The Prince of Void seems to be someone who uses the secrecy and obfuscation to destroy, as well as destroying the void inside himself which sounds kind of cute

That actually sounds fairly usefulAs a Prince of Void one would basically cause people to be destroyed through their lack of knowledge or foresight, perhaps slowly breaking them apart without their knowing

There is a chance, depending on the person, that the Prince of Void could turn grey and use wands to channel the power of darkness to shatter everything and take orders from the Old Gods [Like Rose did while corrupted from being the seer of light]

But that would depend on the person, another Prince of Void may be much more subtle about their abilities 

Having the void destroyed in themselves as part of their personal quest would destroy their privacy, and their secrets. Everybody will know their past or present and they will be unable to escape the spotlight