Bone Spear knowledge

So I have a lvl 100 bone spear necro. Currently works "good" but I feel I'm lacking somewhere so I'd like helpful insight on what yall think. I think my aspects miiiight need a revamp:

Harlequin-selig-starless-sacrelige-tibault

2h/grasping vein---body/juggernaut---boots/crit strike movement---gloves/[do not remember, whatever is on maxroll]

Currently I can frequently hit 9-11mil damage, but im curious if I should be getting rid of Selig amu in favor of a legendary using serration aspect for more crit damage?