Here is how awesome this build is: My nightingale swordsman did a "sudden strike" on a nightingale ghost and got a neck breaking kill move. That's right, he broke the neck of a GHOST!

Hey Ponty, how did you get the images done for the special moves section? I'm thinking of doing something similar for an upcoming build of mine.

Basically just took screenshots, went into GIMP and made silhouettes of things manually using the select tool to make the silhouette, filling it black and blurring it. The ones with multiple 'frames' are just different screenshots I chopped together the silhouettes of.

Hey Ponty, why not invest a couple more perks into sneak to get Assassin's Blade and use a dagger for Sudden Strikes? If it's because this guy's a swordsman only, then that's cool. Also noticed that even with a sword it seems to be a 1HKO anyways so maybe it wouldn't matter xD

Yeah, having a dagger pretty much exclusively for sudden strikes is a bit annoying for switching, makes it more difficult because you need to roll/charge just far enough to hit them but not to run in to them (dagger has less reach), and like you said you can 1-shot people with swords anyway, so it's a waste of perks!

I would reccomend night weavers band for this build. It fits it perfectly in my opinion.

I'm on a playthrough with this character on Master right now, and I'm extremely unbalanced on my damage output/level ratio. I'm level 18 with only 53 in One-Handed. I don't do near enough damage, and anything I fight kills me in just a couple of hits. It's hard to find anything to train up my One-Handed, and also hard to do quests since everything does so much more damage than me.

Any "easy" way to fix this? 

When I played this build on master I swapped the nightingale gloves out for dark brotherhood gloves, that double back stab will lay just about anything out combined with silent roll+critical charge, if you wanted to keep it on master, try that.