This build is just a little bit of fun   here is a PvE and a PvP variant of the same.

PvE Skills
Sneak Attack (Ebon Vanguard)
Mantis Touch (Deadly Arts)
Vampiric Assault (Deadly Arts)
Virulence (Death Magic, Elite (N))
Signet of Deadly Corruption (Deadly Arts)
Signet of Toxic Shock (Deadly Arts)
Sadist's Signet (Deadly Arts)
Rebirth Signet (Sunspear)

PvP Skills
Dancing Daggers (Deadly Arts)
Mantis Touch (Deadly Arts)
Vampiric Assault (Deadly Arts)
Impale (Deadly Arts)
Virulence (Death Magic, Elite (N))
Signet of Deadly Corruption (Deadly Arts)
Signet of Toxic Shock (Deadly Arts)
Sadist's Signet (Deadly Arts)


Attributes
Death Magic 5
Deadly Arts 12 + 1 + 1
Dagger Mastery 8 + 1
Critical Strikes 9 + 1

Equipment
Mix and match Survivors and Radiant insignias
Deadly Arts headgear
Rune of Minor Deadly Arts
Rune of Minor Dagger Mastery
Rune of Minor Critical Strikes
Rune of Purity
Rune of Major Vigor

Zealous or Poisonous daggers of Shelter or Fortitude with 15^50 inscrïption.

Useage
This build is low on defence and relies on life stealing from Vampiric Assault and self healing from Sadist's Signet. Use Sadist's Signet when your foe has several conditions for maximum healing (38 health per condition on target foe at 14 Deadly Arts). If you become blinded, your spells will still work allowing you to use Dancing Daggers, Mantis Touch, Virulence and Signet of Toxic Shock to damage your target. Once blind has been removed or worn off you are then able to use Vampiric Assault and Signet of Deadly Corruption.

A rune of Purity is essential as using Virulence appears to cause you to become diseased (although this is not stated in the descrïption).

you only get diseased if your oponent is human and your too close becous of disease's natural spreading. this is why it isnt stated in the discrïption.