Notes from author
Dark Hand R2 + Symbol of Avarice = Epic
Dark Hand + Hornet Ring Riposte = Badass
Basically, invade somewhere (at SL1, using red eye orb, you have an invasion range of 1+, which means you can literally invade ANY LEVEL. Of course, I'd invade a low level area for maximum spook factor.), and land an R2 on them, perhaps until they're out of soft humanity (the higher your darkwraith level, the more humanity you will suck out at a time, up to 10). Then land a riposte, which should kill them. If it doesn't, land another or something. Don't forget aural decoy! It makes an amazing laughing sound, perfect for a mimic.
If you don't have the dlc, you can use the sorcerer's or beatrice's catalysts, but i reccomend the oolacile because it looks spoopy. You cannot use the oolacile IVORY catalyst, because its int requirement is too high. Hmm. On second thought, maybe you should make your level 3 so that you won't invade any other level 1s; level 1s will almost certainly be non-noobs, such as hackers, etc. That would allow you to put points into other things like endurance or int, or use a different starting class.
In any case, have fun!