Used with this build on Steel Path. Slash procs do the bulk of the damage, Toxin for getting past shields easily. [Shattering Impact] destroys the armor of any Acolytes that might show up. Put Gloom on your Excalibur Umbra (I added it in place of his 3) and you should be all set. Works well by itself or even better by using a Stat-stick like my Skiajati build. Naramon focus school for best results (Power Spike).