I never used plaguefire so I don't know, but the terror part for the defense reduction never worked for my friend on his TR when we played together. It may be better on one of the tanking classes though. :)
Just my two cents for fellow TR players: the lifedrinker enchant is really cool if you have gear that takes advantage of life stealing (T1 Scavenger or T2 Skulker set on TR). An extra boost and the higher you refine it, the better. Playing it increases your HP slowly as you do damage so the more hits you get in, the higher…