Just wanted to mention for anyone considering doing this quest. I have this weapon and the graphic is fairly unique (looks like one of those large primative blades from Rujarkain Hill LDONs.)
As of the date of this post, the blade does not have any type of augment slot on it - which sucks cause an Anger 3 augment would be great. Additionally, the proc, Vindication of Stone, does not stun npcs over roughly level 57. Doesn't seem fair as some of the other rewards include a focus that works up to level 65.