Please let me know what you think of it.

The attributes
The attributes are somewhat flexible, but the basis requires you to have at least 11 swordsmanship and 6 curses bare minimum. Strength and Tactics can be fiddled around with depending on your playing style. If you don't want to sacrifice any HP, use minor runes to help your stats along.
The skills
1. Hundred Blades
2. Healing Signet
3. Sever Artery
4. Gash
5. Sun and Moon Slash
6. "Watch Yourself!"
7. Mark of Pain
8. Plague Touch
Usage
You start off targeting an enemy with Mark of Pain, and then attacking with Hundred Blades. This should raise up your adrenaline enough for you to either start your three skill combo (sever, gash, sun moon slash) or to hit "Watch Yourself!" for party support. If you come under a condition, use plague touch. This is especially useful against rangers who use throw dirt often (afflicted rangers, enchanted bows) as you can resume your attack chain instantly.
Variants
If you want more power against a single opponent, switch sun moon slash with final thrust. If you don't want to lose the adrenaline, switch that with silverwing/galrath slash so you can use watch yourself as well. If you don't want or need to support your party, you can use flail or flurry to increase your attack speed, or use enraging charge to gain more adrenaline at the start of battle.
Yes, the enemies will run like hell from the massive AoE damage, but this will definitely loosen pressure on the party as a whole since the enemies won't have time to focus their attacks.
Another possible variant is to use gladiator's defense in place of hundred blades so you can tank against enemies better.