Well, we'll be using one of the Avatars. Avatar of Lyssa to be exact. The idea behind the build is to use the insane bonus damage the avatar gives with a higher Attack ratethan that of a scythe. It's mostly a build against casters and skill (not attack skill) heavy builds. This includes half of PVE and a lot of PVP Builds.
It's not perfect and it's absurdly fragile, but it's a fast killer, it's different and it's fun.
Equipment:
Whatever Sword of Enchanting
The prefix doesn't matter that much. You might want to go for the reliable Vampire Mod here though.
Inscription:
+15% while enchanted
Offhand:
Doesn't matter much.
Inscription:
+5 AL while enchanted
+45 HP while enchanted
Attributes:
Mysticism: 12+1+3 (16)
Swordsmanship: 12 (12)
Wind: 3+1 (4)
Skills:
Avatar of Lyssa [Elite]
Sever Artery
Gash
Final Thrust
Heart of Fury
One of the selfheal skills in Mysticism
Enchanted Haste
Res Signet
Whenever your target dares to cast or use something you punish him with a +53 Damage Hit. If you combine that with your Adrenalin Skills you pack quite a punch. On casters you constantly hit for 80+ damage when you catch them casting, aaaaand for >180 damage when you're using final thrust on that desperate monk trying to heal himself

The method is to bring him down with sever and Gash and once he gets below 50% he is dead by that high hitting Final Thrust. If that is too much of an unreliable risk for you, you can also grab Galrath and Silverwing instead of Sever and Gash but you're driving without a deep wound then. Another option of course is to go Axe. Easier deep wound, more consistent DPS (on an axe, strangely, yes) but lower spike potential this way.
It works like a charm because of applied psychology. If you hunt that monk and get Deep Wound on him, he starts to panic. He knows that the next hit will be deadly and he will try everything to prevent that. He is sealing his doom instead though. If he stops to cast something, you're right there, hitting for triple digit damage and sending him onto the ground.
Heart of fury is your trustworthy IAS, works for quite a time (and the only reason for the enchantment mod). If it gets removed or shattered or just plainly ends it sets every enemy around you in fire. Enchanted Haste is there to keep up with runners. It doesn't last that long but it's better than nothing.
Good enemies will just leave your build standing, melee hate will affect you as well plus you're a squishy. That's why this is a gimmick build, something along the lines of an IW Mesmer. Good for a laugh, good for the "WTF!" Effect. Far from perfect though. And don't even think about using it in High End PVP

/edit:
If you don't want to ditch your scythe you can try zuzubee's build over here
http://www.guildwarsguru.com/forum/s...php?t=10071683