Nilth T'Feyd drops this, or can. I've got 3 Blood Drenched Gi's over getting this thing. Oh, and it's been dropped to +70 vs slash/pierce/crush +1 def +5 sta
This drops off of one of the named vampires down in the first zone. I don't remember which instance. I know I've finished them all, and gone back to farm them for such loot... just gotta get the bastid to pop.